This list covers six active-New USB-C readers whose packet evidence explicitly establishes UHS-II support for SD or microSD media. They are readers, not storage cards, hubs, or generic USB accessories. The removed Acer listing is not included because its own packet evidence says its SD slot does not support UHS-II cards.
For drone footage, start with the physical card in the aircraft. Some cameras use microSD, some workflows also use full-size SD, and a reader’s stated ceiling is meaningful only when the card and host path match. The right reader is therefore the one that fits your card format, UHS-II requirement, and computer connection.
Key Takeaway: Confirm UHS-II support first, then choose between a dual-slot reader, a direct USB-C reader, or a mixed USB-C and USB-A connection path.
Quick comparison
| Reader | Best for | Listing-stated card support | Connection detail |
|---|---|---|---|
| UGREEN dual-slot | SD and microSD in one reader | UHS-II SD and TF | USB-C |
| UGREEN USB-C and USB-A | Mixed computer ports | UHS-II SD and microSD | USB-C or USB-A |
| uni SD 4.0 | Cable clearance | UHS-II SD and microSD | USB-C with 15 cm cable |
| Apple USB-C SD Reader | SD-only Apple workflow | UHS-II SD | USB-C |
| BENFEI SD 4.0 | USB-C and USB-A travel kit | UHS-II SD and microSD | USB-C and USB-A cord |
| ProGrade PGM0.5 | Highest stated dual-slot ceiling | UHS-II SDXC and microSDXC | USB-C 3.2 Gen 2 |
| Image | Product | Details | Check Price |
|---|---|---|---|
 | UGREEN SD 4.0 Dual-Slot Reader | Card support: UHS-II SD and TF Connection: USB-C Stated ceiling: Up to 312MB/s Slots: Simultaneous two-card read/write listed | Check Price on Amazon |
 | UGREEN USB-C and USB-A Reader | Card support: UHS-II SD and microSD Connection: USB-C or USB-A Stated ceiling: Up to 312MB/s with UHS-II Slots: Shared two-card operation not established | Check Price on Amazon |
 | uni SD 4.0 Reader | Card support: UHS-II SD and microSD Connection: USB-C Stated ceiling: Up to 312MB/s Cable: 15 cm listed | Check Price on Amazon |
 | Apple USB-C SD Reader | Card support: UHS-II SD Connection: USB-C Host fit: Listed Apple USB-C devices Slot limit: No microSD slot established | Check Price on Amazon |
 | BENFEI SD 4.0 Reader | Card support: UHS-II SD and microSD Connection: USB-C and USB-A cord Stated ceiling: Up to 312MB/s Host note: Thunderbolt 3/4 USB-C listed | Check Price on Amazon |
 | ProGrade PGM0.5 Reader | Card support: UHS-II SDXC and microSDXC Connection: USB-C 3.2 Gen 2 Stated ceiling: Up to 625MB/s (5Gb/s) Slots: Dual-slot reader | Check Price on Amazon |
1. UGREEN SD 4.0 Dual-Slot Reader — Best Overall for UHS-II SD and microSD
The UGREEN dual-slot is the clearest all-rounder in this packet because its listing explicitly names both a UHS-II SD slot and a UHS-II TF slot. It states SD 4.0 support, up to 312MB/s, USB-C, and the ability to read and write two cards simultaneously. That makes it the most direct match when your drone and another camera use different card sizes.
The listing also says Android phones need OTG support. That is a host condition, not a universal mobile-device promise. For a laptop-based offload workflow, the key facts are the two UHS-II-capable slots and USB-C connection, while the final transfer rate remains dependent on the card and host path.
Review details: USB-C SD 4.0 reader with listing-stated UHS-II SD and TF slots, simultaneous two-card read and write, and up to 312MB/s.
Pros
- UHS-II SD and TF slots are explicitly stated, covering the two physical formats most relevant to mixed camera kits.
- Simultaneous two-card operation is listed, which can simplify an SD and microSD import routine.
Cons
- Android use requires OTG support according to the listing.
- The 312MB/s figure is a stated ceiling, not a guaranteed result for every card and computer.
Our Take: Choose this UGREEN when both SD and microSD belong in the same drone-footage workflow. It is the best packet-backed starting point because the UHS-II support is explicit for both slots.
2. UGREEN USB-C and USB-A Reader — Best for Mixed Computer Ports
The UGREEN USB-C and USB-A reader is for a creator moving between a newer USB-C laptop and a computer with a standard USB port. Its listing says the two slots support SDXC, SDHC, microSD, and UHS-II cards, while the reader can connect through USB-A or USB-C. It also states up to 312MB/s when used with a UHS-II card.
That dual-connector layout is its real buyer benefit. It does not make the card reader faster by itself, but it can remove the need for a separate host adapter when footage travels between machines. The prepared evidence does not establish a shared two-card operating mode, so choose it for port flexibility and supported media rather than assuming a feature from a different UGREEN reader.
Review details: SD and microSD reader with USB-C or USB-A connection, UHS-II support, and a listing-stated 312MB/s ceiling with UHS-II media.
Pros
- USB-C and USB-A connection options are listed, which suits a mixed-computer workflow.
- UHS-II support covers SD and microSD-family media, keeping it inside this article’s exact reader class.
Cons
- The stated ceiling depends on a UHS-II card, so slower media remains the limiting component.
- The packet does not establish simultaneous two-card operation, so do not infer that feature from another model.
Our Take: Pick this UGREEN when moving media between USB-C and USB-A computers matters more than a cable-attached design or Apple-specific fit.
3. uni SD 4.0 Reader — Best for a Short-Cable Dual-Slot Design
The uni SD 4.0 is a USB-C reader with dual SD 4.0 slots and a stated 15 cm cable. Its listing identifies UHS-II SD support, SD and microSD compatibility, and up to 312MB/s. The short cable is not a performance claim, but it can help when a direct-plug reader would crowd adjacent ports on a laptop or tablet.
The listing explicitly does not support Lightning-port iPhones and iPads. That caveat reinforces the difference between a USB-C host path and a general Apple-device claim. For a USB-C-based drone workflow, its two listed SD 4.0 slots make it a solid compact option when physical clearance matters.
Review details: USB-C dual-slot SD 4.0 reader with UHS-II SD and microSD support, up to 312MB/s, and a listing-stated 15 cm cable.
Pros
- Dual SD 4.0 slots support SD and microSD media, which is useful for a drone plus camera kit.
- A 15 cm cable is listed, providing port clearance in a compact setup.
Cons
- Lightning-port iPhones and iPads are explicitly unsupported.
- The stated 312MB/s ceiling still requires compatible UHS-II media and host conditions.
Our Take: Choose uni when the reader needs a little space away from the computer port without giving up an explicit UHS-II dual-slot design.
4. Apple USB-C SD Reader — Best for an SD-Only Apple Workflow
The Apple USB-C SD Reader is the focused choice for a compatible Apple USB-C device and a full-size SD card. Its listing states UHS-II transfer speeds for high-resolution photos and video, compatibility with USB-C Mac, iPad, and iPhone devices, and a design intended not to block other ports. It is a card reader, not a multiport hub.
The limitation is just as important as the fit: the prepared data describes SD support only and does not establish a microSD slot. That makes it appropriate for a drone or camera that uses full-size SD, but it is not the direct answer for a microSD-only aircraft unless your own media setup includes the necessary SD format path.
Review details: USB-C SD reader for listed Apple USB-C devices with UHS-II transfer support; the packet establishes SD support, not a microSD slot.
Pros
- UHS-II SD transfer support is explicitly listed for the named Apple USB-C device category.
- The design is stated not to block other ports, a practical fit consideration on compact hardware.
Cons
- No microSD slot is established in the packet, so it is not a universal drone-card solution.
- The host evidence is Apple USB-C-specific, not a general compatibility claim for every computer.
Our Take: Choose the Apple reader for a full-size SD workflow on a compatible Apple USB-C device. Skip it when microSD is the only card format you need to read.
5. BENFEI SD 4.0 Reader — Best for a USB-C and USB-A Travel Kit
The BENFEI SD 4.0 is another mixed-port option, with a two-in-one USB-C and USB-A cord design. Its listing states UHS-II support, SD and microSD slots, up to 312MB/s, and compatibility with Thunderbolt 3 and 4 USB-C ports. This is useful when a drone card needs to move between different computers without carrying a separate converter.
The listing qualifies the speed claim: final transfer performance depends on the card and USB slot type. That is the right interpretation for a field kit. The cord solves a connection choice, while the UHS-II slot and media determine whether the reader belongs in a high-speed card workflow at all.
Review details: UHS-II SD and microSD reader with USB-C and USB-A cord design, up to 312MB/s, and listed Thunderbolt 3 and 4 USB-C compatibility.
Pros
- USB-C and USB-A connection paths are listed, reducing the need for a separate host converter.
- UHS-II SD and microSD support is explicit, so the product meets the central eligibility rule.
Cons
- Transfer speed depends on the card and USB port type, according to the listing.
- The packet does not state simultaneous two-card behavior, so do not assume an unlisted workflow feature.
Our Take: Choose BENFEI when your travel kit moves between USB-C and USB-A computers and you still need an explicit UHS-II reader for SD and microSD.
6. ProGrade PGM0.5 Reader — Best for the Highest Stated Dual-Slot Ceiling
The ProGrade PGM0.5 has the highest stated ceiling in this six-product comparison. Its listing identifies a USB-C 3.2 Gen 2 dual-slot reader for SDXC and microSDXC UHS-II media, with up to 625MB/s (5Gb/s). It is aimed at a mobile creator workflow and is the product to compare when the listed ceiling, rather than a mixed USB-A path, is the deciding factor.
The packet also says Refresh Pro is enabled for ProGrade memory cards. That is an ecosystem-specific detail, not a universal management feature for every brand of card. As with every reader here, the stated ceiling depends on the card, host, and copy path, so treat it as the product’s listed capability rather than a guaranteed field result.
Review details: USB-C 3.2 Gen 2 dual-slot reader for SDXC and microSDXC UHS-II cards with a listing-stated ceiling of up to 625MB/s (5Gb/s).
Pros
- The highest stated transfer ceiling in this packet is 625MB/s, for a matching UHS-II and host path.
- Dual UHS-II SDXC and microSDXC slots are listed, fitting a mixed drone and camera card workflow.
Cons
- The stated ceiling remains conditional on media and host performance.
- Refresh Pro is described for ProGrade cards, not as a universal benefit for every card brand.
Our Take: Choose ProGrade when the packet’s highest stated dual-slot ceiling is the deciding factor and your cards and host can support the required path.
Buying Guide: Match the card before the reader’s speed ceiling
Confirm UHS-II support and the physical card format
UHS-II support is the non-negotiable filter. Each remaining product explicitly establishes UHS-II SD or microSD support in its packet evidence. A reader that accepts SD or microSD but rejects UHS-II does not belong in this workflow, even if its title includes USB-C or its other ports look useful.
SD and microSD are separate purchase checks. The Apple USB-C SD Reader is a full-size SD choice, while the other readers list SD and microSD support. Confirm the card in the drone before choosing a reader, because the wrong slot format cannot be fixed by a higher stated transfer number.
Match the host connection to the computer you actually use
USB-C is central to this article, but some products add USB-A flexibility. The UGREEN USB-C and USB-A and BENFEI SD 4.0 can serve mixed computer ports, while uni SD 4.0 adds a 15 cm cable for clearance. Those are connection choices, not proof of a faster card transfer.
Use device-specific caveats as hard limits. uni explicitly excludes Lightning-port iPhones and iPads, and the first UGREEN notes that Android use needs OTG support. Plan from the host connection and stated condition, not from broad device-family assumptions.
Treat maximum transfer figures as conditional ceilings
A reader’s listed maximum needs matching media and host performance. The UGREEN, uni, and BENFEI records state up to 312MB/s, while the ProGrade PGM0.5 states up to 625MB/s. Those figures identify the listings’ ceiling, not a promise for every drone card, laptop, tablet, or destination drive.
Choose slots and packaging around your field routine. Dual-slot readers help when SD and microSD coexist in one kit, while a short cable or a mixed USB-C and USB-A lead can simplify physical setup. The best purchase is the reader whose card formats, host path, and field layout all match the way you offload footage.
FAQ
Does every USB-C SD reader support UHS-II?
No. USB-C describes a connection type, while UHS-II is a required card-reader capability for this article. Every remaining pick explicitly supports UHS-II SD or microSD media in the supplied packet, which is why all six are eligible.
Check the exact reader specification before buying. A product can be a USB-C SD reader yet still belong in a lower-spec category. The card reader must explicitly establish UHS-II support, not merely a USB-C port or broad SD compatibility.
Key Takeaway: USB-C alone is not enough. Require explicit UHS-II reader support for a UHS-II drone-card workflow.
Do I need a reader with both SD and microSD slots?
Only if your equipment uses both formats. The UGREEN, uni, BENFEI, and ProGrade rows list dual-format support, while the Apple reader is the SD-only choice in this packet. A dual-slot reader can simplify a mixed camera bag, but it does not make an SD-only workflow better by itself.
Use the card in the drone as the deciding input. If the aircraft records to microSD, confirm that slot first. If your drone or camera uses full-size SD, the Apple reader may be the more focused fit. The physical card format should eliminate the wrong products before speed figures decide the rest.
Key Takeaway: Buy the slot format you need. Dual slots are useful for a mixed kit, not a requirement for every flight.
Can I expect the listed 312MB/s or 625MB/s every time?
No. These are listing-stated ceilings that depend on compatible UHS-II media and the host path. The card, USB connection, destination storage, and copy workflow all influence the observed result.
Use the numbers to compare potential, not to predict a fixed outcome. ProGrade has the highest stated ceiling in this packet, while several other readers state 312MB/s. Choose the reader only after the card and computer path can make that ceiling relevant.
Key Takeaway: A stated speed is conditional. Match the reader, card, and host before treating a number as a realistic offload expectation.
Evidence limits
Product identity, card-format support, connection details, and stated speed ceilings come from the Amazon listings. No manufacturer documentation, independent measurements, live price, or hands-on testing was used. Confirm the current listing, card type, and host connection before purchase.
For storage used after the offload, compare USB-C flash drives. For a dock that combines card slots with a broader desk connection, see USB-C docks with UHS-II SD card readers.
