UGREEN SD Card Reader USB C 170MB/s Dual-Slot Adapter (TF/SD) – High-Speed USB-C Card Reader

Introduction

The UGREEN SD Card Reader is a USB-C memory card adapter designed to expand your device’s storage options. It combines a dual-slot design for SD and Micro SD (TF) cards with high-speed USB 3.0 performance, offering a practical solution for transferring media and documents on laptops, tablets and USB-C devices. On paper, it supports data transfer up to 5Gbps and claims up to 2TB card capacity, which translates to faster moves of large files like HD videos compared with older USB standards. The aluminium shell promises decent heat dissipation and a compact, lightweight feel that’s convenient for travel.

What it is and what it solves

If your workflow involves moving data between cameras, smartphones or compact drives and a USB-C host, this reader provides a straightforward plug-and-play option. It’s designed to let you read two cards at the same time, reducing the need to constantly swap cards in and out. That’s particularly handy when backing up shoots, migrating project files, or simply freeing up space on your devices.

How it performs in practice

On paper, you’ll get speedy transfers thanks to USB 3.0 (up to 5Gbps) and the capacity to handle sizeable media libraries. The claim that it’s ten times faster than USB 2.0 is a reference point many users recognise, but real-world speeds will depend on the card type (SD/UHS speed class), host device, and file sizes. The unit supports UHS-I SD, SDHC, SDXC and MMC family cards and can read Micro SD and Micro SDHC/SDXC cards as well. One notable caveat is that while it supports UHS-II SD/TF cards, the effective speed reverts to UHS-I speeds, if you’re relying on UHS-II maximums, you may not see the top-tier transfer rates.

Design, durability and compatibility

The aluminium construction contributes to stability and heat management during longer transfers. It’s marked as widely compatible with a range of USB-C devices—from modern laptops and tablets to some phones with OTG support. It’s a straightforward plug-and-play device, with no driver installation required in most environments. Be mindful that NTFS formatted drives aren’t listed as supported by the device’s stated compatibility, FAT32 and exFAT are the more typical formats you’ll encounter for broad compatibility.

Pros and what stands out

• Dual-slot design allows simultaneous read/write on SD and Micro SD cards, reducing swapping.
• High-speed USB-C, up to 5Gbps on compatible hosts, and a compact aluminium build.
• Broad OS and device compatibility with minimal setup, generally plug-and-play.

Limitations and caveats

• Real-world speeds depend on card type and host capabilities, don’t expect top USB 3.0 speeds with every card.
• The adapter’s speed may drop when using UHS-II cards, effectively downshifting to UHS-I limits.
• Compatibility note: NTFS formatting is not listed as supported, FAT32 and exFAT are the clearer choices on phones and tablets.
• The product description focuses on data transfer, it’s not a dongle for power delivery or complex card grooming tasks.

Who it’s for

This reader is suited to photographers, videographers or creators who frequently offload from SD and Micro SD cards to a USB-C system, especially when a single compact adaptor is preferred for travel or on-the-go workflows. It’s also a sensible option for students or professionals who want a simple, reliable way to transfer media to a laptop or tablet without installing extra software.

Who it isn’t ideal for

If your work relies on the highest possible throughput from UHS-II SD cards, or if you routinely format drives in NTFS for Windows compatibility, this reader may feel limiting. It’s more of a practical, value-focused tool than a high-end, professional-grade transfer station.

When it makes sense to buy

• You need a compact USB-C reader that can handle both SD and Micro SD cards concurrently.
• You value a plug-and-play experience with broad compatibility and a durable metal body.
• Your workflow involves moving sizeable media files and you want to avoid constant card swapping.

What to check before you buy

• Ensure your host device supports USB-C (and OTG on Android, if you plan to use it with phones).
• Consider the file system of the cards you primarily use (FAT32/exFAT are commonly supported formats).
• If you work with UHS-II cards, manage expectations about achieved speeds.

Practical use example

Imagine you’re backing up a week’s shoot from two cameras: one uses an SD card, the other Micro SD. You plug both cards into the reader connected to a USB-C laptop and start the transfer. The cards transfer in parallel, reducing downtime between cards and letting you start editing sooner rather than later. It’s not a magic speed boost, but it does remove the tangles of multiple adapters and minimise plugging in and out.

FAQ

• Will this work with my smartphone? It can work with Android phones that support OTG, provided the phone’s formatting is FAT32 or exFAT and OTG is enabled. If you rely on NTFS, it may not be supported.
• Can I use it on Windows, Mac and Linux? Yes, it’s designed to be plug-and-play across major operating systems without requiring drivers.
• What formats are supported for the cards? It supports FAT32 and exFAT widely, NTFS is not listed as supported.

Final decision

Is it worth it? Worth considering if you prioritise a compact, dual-slot USB-C reader for quick, concurrent transfers and broad device compatibility. It isn’t the fastest or most feature-rich reader on the market, but for everyday transfers and travel use, it offers solid value and practical simplicity.