Review on uni USB C SD Card Reader Adapter USB 3.0 - Supports SD/Micro SD/SDHC/SDXC/MMC - Compatible with MacBook Pro, MacBook Air, iPad Pro 2018, Galaxy S20, Huawei Mate 30, and More by Chris Tisdale

The first image in this Revain listing shows the full size SD card on the wrong side, but it shows correctly in the other images. The contacts of both cards point towards the middle of the device. I tested this device with a micro SD card and a full size SD card both inserted, and my Android phone and Windows computer both recognize and read files from both inserted cards at the same time. I tested moving files from one inserted SD card to another and the transfer speed was as expected for a USB 3.0 device. This is a lifesaver when moving large amounts of data from one card to another, e.g. B. Transferring a Nintendo Switch to a larger SD card. The included strap appears to be optional, but is easily removed. The construction is aluminum all round and the dust caps fit snugly so it feels very nice. When I try to remove the card reader from my Android phone, I was only able to remove one of the cards. My phone showed me the files from the remaining card, but there was no notification to remove the device. This is not due to the card reader, but should be considered if you want to connect two SD cards to an Android phone.