UGREEN USB C Micro SD Card Reader, Type C to Micro SD Card Adapter with Zinc Alloy External, Portable SD Card Reader USB C for TF Micro SDHC SDXC, Compatible with Samsung/Mac/iPad Pro/iPhone 15 16

Small form factor works great for data transfer

This micro SD reader is super handy since my tablet lacks expandable storage. It lets me use a micro SD card, which is more compact than a USB flash drive, and access its contents through the tablet's browser. When transferring large files, it does get warm, but that’s probably because metal dissipates heat better than plastic. The copy speed stayed consistent while moving 60 GB from the micro SD card to the internal storage.

Works great, fast. Decent price. This is my 2nd one. I'm getting a 3rd for a backup. I able to read sd cards on my phone with this.

It does what it is supposed to do. The only drawback so far that I'm seeing is that it starts to run hot really fast. Other than that, it works.

Impressed with the performance of this tiny device in tests with my new iPhone 15 Pro Max. It easily plugged in with my case still on the phone. It was quickly recognized in the Files app. An informal read speed indicated a transfer speed of about 80GB/sec to the iPhone 15 Pro's internal RAM. Saving a 2GB 4K video from the phone to a Samsung EVO Select SDXC using the adapter took less than 30 seconds. And, so far, it handles direct writes when recording in Log video format. No major heat issues as yet at normal environmental temperatures. When purchased was about $11, so it exceeds expectations at that price point and if it inevitably gets lost due to its small size its no big loss unless I leave a memory card in it. However, the keychain attachment gives you a means to keep better track of it. As others have said, the design does like the MicroSD card exposed some. Considering that the whole thing is sticking out of a port on a phone that costs more than $1,000 brand new, you'll should probably be babying the whole rig when it is attached to be safe or spend more on something more ruggedly designed if you're situation that calls for it.

This comes in handy when you aren’t transferring through a wire. I use it transfer photos from my phone and works great. Simple data transfers of files and photos are convenient with this tiny reader.

I was expecting the item to be bigger than the photo showed, but it was just as small as the listing. It functioned exactly as I wanted. Nice, accurate, small

Great lil device