UGREEN USB C SD 4.0 Card Reader, UHS-II Micro SD Card Reader

The Verdict

If you’re a photographer, videographer, or drone pilot, your memory card reader is the boring bottleneck in your workflow. The UGREEN USB C SD 4.0 Card Reader aims to fix that with UHS-II support and dual-slot convenience. After digging through specs, user feedback, and real-world performance reports, here’s the honest breakdown.

What You Actually Get

The package is minimal: the card reader itself, a user manual, and that’s it. It’s a compact aluminum alloy stick—roughly the size of a thick USB flash drive—with two slots on the end: one full-size SD 4.0 and one microSD 4.0. The USB-C connector is built directly into the body, so there’s no cable to lose or replace. That’s a double-edged sword, which I’ll get to shortly.

Performance That Justifies the Upgrade

The headline spec is SD 4.0 / UHS-II support, delivering read speeds up to 300MB/s. In practice, users report offloading a 64GB card of RAW files in under four minutes—roughly three times faster than a standard UHS-I reader. One Amazon reviewer put it simply: “Moved 30GB of 4K drone footage in about two minutes. My old reader took nearly ten.”

The dual-slot design is the real workflow winner. You can pop in a full-size SD from your camera and a microSD from your drone or GoPro simultaneously, batch-transfer both, and move on. No adapter swapping, no fumbling.

Build Quality and Heat Management

The aluminum housing isn’t just for looks. Sustained transfers generate heat—especially with UHS-II cards—and the metal body acts as a heatsink. Multiple long-term users note it runs warm but never hot to the touch, even after back-to-back large transfers. The connector is also reinforced, which addresses the common failure point on cheaper readers.

Where It Falls Short

The USB-C-only design is the biggest limitation. If you’re on an older laptop with only USB-A ports, you’ll need a dongle—which defeats some of the portability. Also, because the reader plugs directly into your port, it can block adjacent ports on tightly spaced laptops. A short cable would’ve solved both issues, but UGREEN didn’t include one.

Second, the UHS-II speed bump only matters if your cards support it. If you’re still using UHS-I cards (the vast majority of affordable SD cards), this reader will perform at standard speeds. You’re paying for future-proofing, not an immediate speed boost on existing gear.

Finally, a few users reported that the microSD slot is snug—cards seat firmly and require a firm push to click in. It’s not a defect, but it takes getting used to if you’re accustomed to looser slots.

Who Should Buy This

This reader is for working photographers, videographers, and content creators who transfer large files daily. If you shoot RAW, 4K/6K video, or fly drones, the time savings are substantial. It’s also ideal for dual-card workflows—say, a camera with SD and a phone or drone with microSD.

Skip it if you only transfer the occasional batch of JPEGs from a UHS-I card, or if your laptop lacks USB-C. You won’t see the speed benefit, and the direct-plug design may annoy you.

FAQ

Does this reader work with UHS-I cards? Yes, it’s backwards compatible. UHS-I cards will run at their native speeds (typically 80-100MB/s). You just won’t get the 300MB/s UHS-II benefit.

Will it work with my iPad Pro or Android phone? Yes, both support USB-C mass storage. iPadOS recognizes it natively; Android needs a file manager app but works fine.

Is it hot-swappable? Yes, you can pull cards in and out without unmounting, though it’s good practice to eject properly to avoid data corruption.

The Verdict

The UGREEN USB C SD 4.0 Card Reader earns its 4.6-star rating through solid build quality, genuine UHS-II performance, and a dual-slot design that streamlines real workflows. The USB-C-only limitation and lack of cable hold it back from perfection, but for the right user, this is a professional-grade tool at an accessory price.

Buy it if: You work with UHS-II cards, transfer large media files regularly, and have USB-C on your primary devices.

Skip it if: You’re on USB-A only, or you’re still on UHS-I cards and don’t plan to upgrade soon.

Rating: 4.6/5 — A fast, durable, dual-slot reader that earns its place in any serious creator’s kit, despite a few connectivity quirks.

Where to Buy

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Last updated: 2026-08-06. Ratings and prices current as of review date. Verify on Amazon before purchasing.