8 Best PCIe 4.0 NVMe SSDs – Buying Guide (2021)

Best PCIe 4.0 SSD

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If you want to unlock faster storage speeds, you’ll need to invest in one of the best PCIe 4.0 NVMe SSDs. PCIe Gen4 SSDs deliver blazing speeds for faster, smoother, and responsive gaming, streaming, and content creation.

Whether it’s graphics-intensive rendering, transferring 8K videos, data analytics, or loading games faster, PCIe 4.0 NVMe drives give you the bandwidth needed to handle heavy-duty applications. They are the fastest solid-state drives available in the market right now.

Also, check out our other buying guide on the best motherboards with PCIe 4.0 to complete your PCIe Gen4 powered PC build.

Best PCIe 4.0 NVMe SSDs Compared

Please note we compared the sequential read/write speeds of the 1TB model of each PCIe 4.0 SSD. Depending on the brand, you can get even higher speeds with a higher capacity model.

The Best PCIe 4.0 NVMe SSDs – OUR PICKS

ImageProductDetailsCheck Price
ADATA XPG GAMMIX S70 on Amazon
ADATA XPG GAMMIX S70Capacity: 1TB, 2TB
Interface: PCIe 4.0 x4
Form Factor: M.2 2280
Sequential Read (1TB): 7400MB/s
Sequential Write (1TB): 6400MB/s
Heatsink: Yes
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WD_Black SN85 on Amazon
WD_Black SN85Capacity: 500GB, 1TB, 2TB
Interface: PCIe 4.0 x4
Form Factor: M.2 2280
Sequential Read (1TB): 7000MB/s
Sequential Write (1TB): 5300MB/s
Heatsink: Yes
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Samsung 980 PRO on Amazon
Samsung 980 PROCapacity: 250GB, 500GB, 1TB, 2TB
Interface: PCIe 4.0 x4
Form Factor: M.2 2280
Sequential Read (1TB): 7000MB/s
Sequential Write (1TB): 5000MB/s
Heatsink: No
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Sabrent Rocket 4 Plus on Amazon
Sabrent Rocket 4 PlusCapacity: 1TB, 2TB, 4TB
Interface: PCIe 4.0 x4
Form Factor: M.2 2280
Sequential Read (1TB): 7000MB/s
Sequential Write (1TB): 5300MB/s
Heatsink: Sold separately
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GIGABYTE AORUS NVMe Gen4 SSD on Amazon
GIGABYTE AORUS NVMe Gen4 SSDCapacity: 500GB, 1TB, 2TB
Interface: PCIe 4.0 x4
Form Factor: M.2 2280
Sequential Read (1TB): 5000MB/s
Sequential Write (1TB): 4400MB/s
Heatsink: Yes
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Sabrent Rocket 4 on Amazon
Sabrent Rocket 4Capacity: 500GB, 1TB, 2TB
Interface: PCIe 4.0 x4
Form Factor: M.2 2280
Sequential Read (1TB): 5000MB/s
Sequential Write (1TB): 4400MB/s
Heatsink: Yes
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Silicon Power US70 on Amazon
Silicon Power US70Capacity: 1TB, 2TB
Interface: PCIe 4.0 x4
Form Factor: M.2 2280
Sequential Read (1TB): 5000MB/s
Sequential Write (1TB): 4400MB/s
Heatsink: No
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Corsair Force Series MP600 on Amazon
Corsair Force Series MP600Capacity: 500GB, 1TB, 2TB
Interface: PCIe 4.0 x4
Form Factor: M.2 2280
Sequential Read (1TB): 4950MB/s
Sequential Write (1TB): 4250MB/s
Heatsink: Yes
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1. ADATA XPG GAMMIX S70 – The fastest PCIe 4.0 NVMe SSD you can buy

The ADATA XPG GAMMIX S70 is the fastest NVMe drive you can buy today. It boasts of incredibly fast read/write speeds of up to 7400/6400/MB/s, besting the likes of Samsung 980 Pro and WD_Black SN85.

Even better, this PCIe 4.0 NVMe SSD has a better cost per GB than the other second-generation PCIe Gen4 drives.

With blazing-fast speeds, the XPG GAMMIX S70 is ideal for gaming and high-end desktops for bandwidth-intensive workloads, such as video editing, 3D modeling, and data analytics. For instance, a 4K video will take significantly less time to render when using a PCIe 4.0 SSD than a PCIe 3.0 one (assuming you’re also using a PCIe Gen4 motherboard).

ADATA left no stone unturned in the design and implementation of the XPG GAMMIX S70. It combines robust error detection and correcting technology with high-end encryption to ensure data security and integrity. It also comes with a heatsink to alleviate heating problems on heavy read and writes loads. A 5-year warranty isn’t bad for added peace of mind.

The XPG GAMMIX S70 is available in 1TB and 2TB capacities. Both come in a 2280 form factor, ensuring wider compatibility across many motherboards. This drive will also work with PCIe 3.0 motherboards but at reduced speeds of up to 3400/3000MB/s.

Our Take

If you’re looking for the fastest PCIe 4.0 NVMe SSD for your PC, the XPG GAMMIX S70 is the best you can get. This drive combines amazingly fast speeds with superb built quality to ensure fast, reliable performance for gaming and content creation. Its lower cost per GB screams a premium value.

PROS
  • Excellent performance
  • It has a heatsink to reduce thermal issues
  • Better cost per GB
CONS
  • No cloning software included

2. WD_Black SN850 NVMe SSD – Fast PCIe 4.0 SSDs for RGB gaming builds

WD_BLACK SN850 NVMe SSD is another PCIe Gen4 solid-state drive that delivers amazing second-gen PCIe 4.0 performance. This drive can hit insane sequential read/write speeds of up to 7000/5300MB/s, a significant jump over PCIe 3.0 NVMe SSDs.

What makes this SSD unique is the customizable RGB lighting. If you browse through the gaming setups on Reddit, you’ll hardly find a battlestation without RGB.

The WD_BLACK SN850 lets you build the gaming station for your dreams with customizable RGB lights. But it’s not just about style. The strong sequential performance delivers a smooth and responsive gaming experience. Say goodbye to slow boot times and loading screens.

However, only the SN850 model with a heatsink has RGB. You can customize the RGB lighting and monitor the drive’s health through the WD_BLACK Dashboard software. Other than RGB, the SN850 heatsink model prevents overheating and thermal throttling on sustained workloads.

One of the best features available on the WD_BLACK Dashboard is Game Mode. This feature disables power saving, allowing the SSD to run at peak levels for consistently high performance when gaming.

The SN850 is available in varying capacities ranging from 500GB to 2TB. It conforms to the M.2 2280 form factor and maintains backward compatibility with last-gen PCIe motherboards. You also get an industry-leading 5-year limited warranty.

Our Take

If you need speed and style on your next gaming rig, the WD_BLACK SN850 is a great place to start. This PCIe Gen4 SSD delivers insane sequential performance for faster gaming and faster content creation. It’s loaded with RGB lighting, a feature not common in other PCIe 4.0 SSDs, to match your style and add more aesthetics to your battlestation.

PROS
  • Insane read and write speeds
  • Great aesthetics with RGB lighting
  • Heatsink to prevent thermal throttling
  • Feature-rich utility software
CONS
  • No M.2 screws included

3. Samsung 980 PRO – A reliable PCIe 4.0 SSD for second-gen performance

Samsung 980 PRO might not be the fastest PCIe 4.0 NVMe SSD available and certainly not the cheapest, but it has a lot to offer than you can imagine. It is still one of the fastest PCIe 4.0 NVMe SSDs available with 7000/5000MB/s read/write speeds.

Unlike other PCIe Gen4 drives, Samsung 980 PRO is built using Samsung’s very own flash memory and controller, allowing end-to-end integration for quality and reliability. Other brands source the flash memory and controller from other companies. Thus, they don’t have full control over the quality control, making the Samsung 980 PRO the most reliable PCIe 4.0 NVMe SSD you can buy.

While this drive does not have a robust heatsink, Samsung implements an effective thermal control with a nickel-coated controller and a heat spreader label on the NAND chips for efficient heat dissipation. It can deliver sustained high performance at optimal temperature.

Another selling feature of the 980 PRO is intuitive and feature-rich Samsung Magician software, which includes handy tools such as drive health check, performance benchmark and optimization, and firmware updates. You can also download the Data Migration software to transfer files from your old drives quickly.

The 980 PRO is available in different sizes, from 250GB to 2TB. It is compatible with PCIe 4.0 and 3.0 motherboards with an M.2 (2280) slot. The 980 PRO is also backed by a 5-year limited warranty.

Our Take

The Samsung 980 PRO is the best PCIe 4.0 NVMe SSD if you value quality and long-term reliability. It is built with in-house components, including the flash memory and controller, so you can have peace of mind knowing your performance will be reliable. Besides, the 980 Pro has a 5-year warranty should anything go amiss.

PROS
  • Fast, reliable performance
  • Different capacities, from 250GB
  • Intuitive Samsung Magician software
CONS
  • Cheap, fast PCIe 4.0 SSDs available

4. Sabrent Rocket 4 Plus – High Capacity PCIe 4.0 NVMe SSD

If you’re looking for the largest PCIe 4.0 NVMe to boost your PC’s storage space, the Sabrent Rocket 4 Plus with capacity options of up to 4TB is the best option for you. It is a suitable solid-state drive for hardcore PC gamers who play a lot of AAA games.

For instance, Cyberpunk 2077, one of the best PC games of 2021, is approximately 70GB. With a 1TB drive, that means you can store anywhere around 10 to 14 such games (assuming you won’t store any other files and media).

But with 4TB, you can store as many as 50 AAA games and still have additional space for other media. Moreover, the Rocket 4 Plus offers more than just high-capacity storage.

Sabrent Rocket 4 Plus is one of the fastest PCIe 4.0 NVMe SSDs available with sequential read/writes of up to 7000/5300 MB/s. Upgrading to the larger 4TB model skyrockets the speeds to incredibly fast 7100/6600 MB/s read/write. That means insanely-fast transfer speeds, quick game boot times, and zero loading screens. More speed, more storage.

The Rocket 4 Plus is sold without a heatsink, which isn’t great for such a high-bandwidth drive. For motherboards without M.2 heatsinks, we highly recommend buying the Sabrent M.2 2280 SSD Rocket Heatsink. It’s a very robust heatsink with aluminum heatsinks and copper coils designed for Sabrent M.2 2280 SSDs like the Rocket 4 Plus.

Free cloning software is included with every purchase of the Rocket 4 Plus that lets you quickly move data from an old drive to the Rocket 4 Plus. You also get a 5-year warranty for added peace of mind.

Our Take

The Sabrent Rocket 4 Plus is a perfect PCIe NVMe SSD for high-bandwidth tasks and storage needs such as triple-A gaming and ultra high definition video editing. It gives you the storage and speeds you need to store and transfer very large files in the size of a gum stick. It is one of the best PCIe Gen4 SSDs you can buy today.

PROS
  • High capacity up to 4TB
  • Strong sequential performance
  • Superior build quality
CONS
  • Heatsink attracts extra cost

5. GIGABYTE AORUS NVMe Gen4 SSD – Best midrange

The AORUS NVMe Gen4 SSD is one of the first-gen PCIe 4.0 drives to enter the market. It brings incredible read/write speeds of up to 5000/4400 MB/s, up to 40 percent faster than PCIe 3.0 drives.

One thing the AORUS NVMe Gen4 SSD does better than other PCIe 4.0 drives is the cooling performance. This drive is better suited for sustained gaming sessions and heavy workloads with a full-body copper heat spreader and high conductivity thermal pads. Its finned design leads to better heat dissipation, ensuring high performance for extended periods at lower temperatures.

While not the fastest, the AORUS NVMe Gen4 SSD delivers a massive boost in performance when upgrading from a SATA SSD or HDD. It is available in ranging capacities from 500GB to 2TB. Which is best depends on the number of games and media files you have.

The AORUS NVMe Gen4 SSD includes a feature-rich utility software, SSD Tool Box. You can monitor the health condition, working temperature, clear all the data in the drive, and obtain handy details about the SSD, such as model name and firmware version.

AORUS NVMe Gen4 SSD comes with an M.2 2280 form factor and is backward compatible with PCIe 3.0 motherboards. Like most PCIe 4.0 SSDs, you get a 5-year limited warranty.

Our Take

If you’re building a PC for longer gaming sessions and sustained workloads, the AORUS NVMe Gen4 SSD is the best PCIe 4.0 SSD to buy. This drive can deliver high performance over extended periods at lower temperatures, thanks to its robust thermal design. We highly recommend it for SFF PC builds.

PROS
  • Best thermal management
  • Excellent performance
  • Feature-rich utility software
CONS
  • No cloning software

6. Sabrent Rocket 4 – Best bang for your buck

The Sabrent Rocket 4 is where the value for money lies. It has everything you could want in a PCIe 4.0 SSD. A heatsink and incredible first-gen performance, souped-up with an affordable cost per GB. It is the cheapest PCIe Gen4 SSD available with a heatsink.

The Rocket 4.0 delivers excellent first-gen performance with sequential read/writes of up to 5000/4400 MB/s, a good option for mid-range PCIe 4.0 gaming builds. The speeds will fall back to 3500/3400 MB/s on a PCIe 3.0 motherboard.

The Rocket 4 comes with a pre-installed heatsink to ensure top performance on sustained workloads. It combines an aluminum heatsink with copper coils to increase the cooling efficiency and heat dissipation. Only the AORUS NVMe Gen4 SSD has a better cooling performance.

Another great feature I like with the Rocket 4 is the free cloning software, something you don’t get very often in cheaper NVMe drives. The Acronis True Image software enables you to migrate or back-up data to another drive. For instance, instead of installing another operating system when you buy a new SSD, you can save time by cloning the existing OS and replace the drives.

There are different capacities of the Sabrent Rocket PCIe 4 SSD up to 2GB. All drives come with an M.2 2280 form factor, maintaining compatibility with many modern motherboards. Oh, and this drive includes a 5-year limited warranty—too much sauce for a cheaper PCIe 4.0 NVMe SSD.

Our Take

If you’re looking for a full-blown budget NVMe SSD for your gaming rig, the Sabrent Rocket 4.0 is the best PCIe NVMe drive you can get. This SSD delivers impressive speeds, excellent cooling efficiency, an industry-leading 5-year warranty, and free cloning software. There is just no better PCIe Gen4 NVMe SSD than the Rocket 4.0 at this price.

PROS
  • Incredible value for money
  • Excellent speeds
  • Robust heatsink
  • Free cloning/back-up software
CONS
  • TBW Rating unknown

7. Silicon Power US70 – The cheapest PCIe 4.0 SSD you can buy

Silicon Power US70 is the cheapest PCIe 4.0 NVMe SSD you can buy today. It uses the first-gen Phison PS5016-E16 controller, delivering sequential read/write speeds of up to 5000/4400 MB/s.

One reason the Silicon Power US70 is available on the cheap is the lack of a heatsink. It only uses a sticker on the NAND chip, which is not effective at conducting heat away. We highly recommend installing it to motherboards with M.2 heatsinks for the best performance. Most mid-range to high-end motherboards include one or more M.2 heatsinks.

The Silicon Power US70 does not come with cloning software, but you can download the SP ToolBox to monitor drive health, carry out performance tests, and securely delete files. For the cloning software, you can get your hands dirty and re-install the OS or manually migrate files if you’re buying a new SSD. It might take more time, but that’s money saved.

The performance is good as it gets for first-gen PCIe 4.0 solid-state drives. The US70 is available in 1TB and 2TB capacities with an M.2 2280 form factor and adds a 5-year warranty.

Our Take

Silicon Power US70 is a cheap PCIe 4.0 NVMe drives with excellent sequential performance as pricey first-gen PCIe Gen4 drives. While it does not have a heatsink, this won’t be a dealbreaker unless you’re pushing the system to the core every single time. Plus, it is easy to find motherboards with included M.2 heatsinks nowadays. Overall, it is a better value for the money.

PROS
  • Cheap and affordable
  • Amazing sequential performance
  • 5-year warranty
CONS
  • No heatsink

8. Corsair Force Series MP600 – A reliable PCIe 4.0 NVMe SSD for first-gen performance

The Corsair Force Series MP600 is the first PCIe 4.0 NVMe SSD to be introduced in the market. Actually, AMD used these drives in benchmarking its new Zen 2 processors. The Force Series Gen.4 PCIe MP600 SSDs still have a lot to offer for pro gamers, overclockers, and enthusiasts.

The Force Series MP600 is not the fastest SSD in this roundup, let alone in the market, but it makes up for that with a robust heatsink and solid build quality. It can hit maximum sequential read/write speeds of up to 4950/4250 MB/s, which is considerably better than PCIe 3.0 and SATA-based M.2 drives.

The drive comes with a pre-installed aluminum heatsink with a large surface area and finned design to ensure efficient heat dissipation to prevent thermal throttling on heavy read and writes. You can push your system to the core and still get high read and write speeds.

With a 2280 form factor, the Force MP600 is compatible with many modern motherboards in the market. It is available in ranging capacities ranging from 500GB to 2TB. The 5-year warranty should give you one more reason to buy and added peace of mind.

Our Take

The Corsair Force Series MP600 is a golden oldie PCIe 4.0 NVMe SSD, great for mid-range gaming rigs. It comes with a robust heatsink, giving you the pass to overclock and push your system to the limits without worrying about thermal issues. The 5-year warranty and solid build quality provide you with peace of mind knowing the drive will perform at its peak for years.

PROS
  • Excellent performance
  • Pre-installed heatsink
CONS
  • No software bundle

Choosing the Best PCIe 4.0 NVMe SSDs – The Ultimate Buying Guide

Seven things to consider when choosing the best PCIe 4.0 NVMe SSD.

Capacity

How much capacity you need depends on your needs. Even so, we wouldn’t recommend buying an SSD that has less than 256GB of storage.

256GB is excellent for a start if you’re looking for a boot drive to store your operating system. It is a great way to breathe life into aging PCs with faster boot times and transfer speeds. However, there is just too little room for other files and media. Combining a 256GB PCIe 4.0 SSD with a high-capacity HDD adds quick boot times and expands your storage space. Samsung 980 PRO (Amazon Link) is the only PCIe 4.0 NVMe SSD available in a 256GB capacity.

If you don’t intend to buy HDD for extra storage space, a 500GB PCIe 4.0 NVMe SSD is the best entry-level capacity to store your OS, primary programs, and a few more files. It’s an ideal storage capacity for everyday computing needs, but not for storing large media files and games. 500GB capacity is popular among most PCIe 4.0 drives.

We consider 1TB the best storage capacity for most people. You get plenty of room for your operating system, programs, and additional files, including media and games. And if you don’t store a lot of 4K movies and triple-A games, you remain with ample space for your future storage needs. Luckily, all PCIe NVMe drives have a 1TB model, from premium picks such as the ADATA XPG GAMMIX S70 (Amazon Link) to budget offerings like the Silicon Power US70 (Amazon Link).

2TB is the highest storage capacity available on most PCIe 4.0 NVMe SSDs. It’s great for professional creatives working with ultra high definition videos, such as 4K and 8K, and hardcore gamers with an extensive AAA game library. With the speeds of PCIe 4.0 NVMe, you can transfer a huge file in seconds. All PCIe 4.0 NVMe SSDs come with a 2TB capacity option.

If you thought 2TB is the largest capacity on a PCIe Gen4 NVMe drive, you haven’t seen the Sabrent Rocket 4 Plus (Amazon Link) yet. It’s the only PCIe 4.0 consumer SSD available in a large 4TB capacity, great for professionals and server-class storage needs. 4TB drives are a tad more expensive but tend to include a lower cost per GB, delivering a premium value.

Form Factor

PCIe 4.0 NVMe drives connect to a motherboard through an M.2 connector. There are different form factors of the M.2 connector, mainly determined by the width (first two digits) and length (last digits) of the drives. Almost all NVMe drives have a width of 22mm, but the length can differ depending on the model. The most common lengths of M.2 SSDs are 30mm (2230), 42mm (2242), 60mm (2260), 80mm (2280), and 110mm (22110).

Motherboards, on the other hand, may include accommodations for M.2 drives of different lengths. You can mount a smaller M.2 drive into a longer M.2 slot, but you cannot mount a longer M.2 drive into a smaller M.2 slot. Make sure the PCIe 4.0 NVMe drive you buy will be compatible with your motherboard. All the SSDs featured in this port come with a 2280 form factor, common in most motherboards.

Sequential Speeds

I assume one of the reasons you considered buying a PCIe 4.0 NVMe SSD is to get high speeds. Well, you got it because these drives offer insanely-fast speeds breaking the 7000MB/s barrier in sequential read speeds and 6000MB/s sequential write speeds.

However, PCIe 4.0 NVMe drives based on the first-gen Phison PS5016-E16 controller max out at 5000/4400 MB/s sequential read/write speeds.

Even at 5000/4400 MB/, first-gen PCIe 4.0 drives are over 40 percent faster than PCIe 3.0 SSDs and head and shoulders ahead of SATA SSDs and HDDs. GIGABYTE AORUS NVMe Gen4 SSD (Amazon Link) is one of the fastest and reliable first-gen PCIe 4.0 SSD you can buy today.

To fully appreciate the speeds of PCIe Gen4 NVMe drives, you need a PCIe Gen4 SSD that uses the second-gen Phison PS5018-E18 controller or Samsung Elpis and WD Black_G2 for Samsung and WD Black SSDs. These latest SSDs can hit astronomical speeds of 7000MB/s and even higher. ADATA XPG GAMMIX S70 (Amazon Link) is the fastest PCIe 4.0 NVMe available today.

Please note that you might not hit the advertised theoretical speeds due to different PC configurations and components.

Cost per GB

High-capacity SSDs such as 2TB and 4TB are expensive but have a lower cost per GB ratio than 1TB and smaller SSDs. That means you’re getting more value for your money and also more storage for future needs. If you intend to add more storage in the future, it’s economical to buy one high-capacity PCIe 4.0 NVMe drive than adding smaller ones over time.

Still, if you’re looking for the cheapest PCIe 4.0 SSD that money can buy, the Silicon Power US70 (Amazon Link) is the best bet. If you want one with a heatsink, the Sabrent Rocket 4 (Amazon Link) is a good choice.

Heatsink

With their insanely-fast speeds, PCIe 4.0 NVMe SSDs generate a lot of heat on sustained gaming sessions and heavy workloads. We recommend buying a PCIe 4.0 SSD with a pre-installed heatsink to keep the drive operating at optimal temperatures, ensuring reliable, high performance at all times.

A PCIe 4.0 SSD with no heatsink is prone to thermal issues such as overheating and thermal throttling, which affects the drive’s performance and reduces its lifetime. With a full-body copper heatsink, GIGABYTE AORUS NVMe Gen4 SSD (Amazon Link) implements the most reliable thermal management of any PCIe 4.0 NVMe drives. If you want top performance with reliable cooling, the Sabrent Rocket 4 Plus (Amazon Link) paired with Sabrent M.2 2280 SSD Rocket Heatsink (Amazon Link) is your best bet.

You can still buy a PCIe 4.0 SSD without a heatsink if your motherboard comes with M.2 heatsinks (GIGABYTE AORUS NVMe Gen4 M.2 on Amazon). Most PCIe 4.0 motherboards include at least one M.2 heatsink.

Software Bundle

Most SSDs include a software bundle with one or more tools to monitor the health and performance of the SSD over time. Make sure you at least get free monitoring software with the drive. The best monitoring software includes an intuitive interface with tools to check the performance and health of the SSD, run diagnostics, update firmware, and encrypt the drive.

Samsung Magician software, available with the Samsung 980 PRO (Amazon Link), is the best SSD monitoring software. Samsung even includes a migration software to move data to the new drive quickly. Only the Samsung and the Sabrent SDDs provide free cloning software.

If you’re looking for a PCIe 4.0 SSD for gaming, we highly recommend buying the WD_Black SN850 (Amazon Link). The bundled software for the SN850 includes a Game Mode which turns off power saving mode, allowing the SSD to run at its full potential.

Extras – RGB Lights

If you spend time browsing through gaming setups on Reddit and YouTube, you know your rig isn’t complete without RGB. RGB does not make you a better gamer, but it adds more immersion and aesthetics to your battlestation.

WD Black enables you to build an epic RGB gaming setup, including the storage with its WD_Black SN850 PCIe Gen4 NVMe drive (Amazon Link). It is the only PCIe 4.0 NVMe SSD with RGB lighting. Even better, the RGB is customizable and compatible with popular RGB software such as Razer Chroma, ASUS Aura Sync, MSI Mystic Light, and Gigabyte RGB Fusion.

The Best PCIe 4.0 NVMe SSDs – Frequently Asked Questions

Can I use a PCIe 4.0 SSD in a 3.0 slot?

PCIe 4.0 is backward compatible, meaning you can use a PCIe 4.0 SSD on a PCIe 3.0 slot, but it will run at PCIe 3.0 speeds. For instance, the Sabrent Rocket 4 achieves 5000/4400 MB/s sequential read/write speeds on a PCIe 4.0 slot but only 3500/3400 MB/s on a PCIe 3.0 slot.

Does PCIe 4.0 make a difference?

PCIe 4.0 unlocks faster sequential performance on PCIe 4.0 NVMe SSDs than PCIe 3.0 SSDs, leading to faster data transfer speeds, quick boot times, and zero loading screens. The astronomical speeds of PCIe Gen4 SSDs are critical in bandwidth-intensive tasks, such as 4K and 8K video rendering.

Which is better NVMe or PCIe?

An M.2 PCIe SSD that supports NVMe is better than a PCIe SSD without NVMe. NVMe works with the PCI Express interface to enable faster storage access to and from SSDs. An NVMe PCIe SSD has higher read/write speeds than a standard PCIe SSD.

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