Tits_Mcgruff

I'm still using the same mobile mate from 2021 that I referred to in my post up thread. I also have a couple others I bought around the same time that I use for work. They haven't ever had any issues and none have bent contacts. The vast majority of the reviews on the Amazon page for the mobile mate are positive. Pretty much all high volume products on amazon will have some amount of negative reviews about manufacturing defects that slipped through QA. Based on the fact you had this defect in two different SKUs, sandisk has either had an uptick in QA issues or you're just super unlucky. The main purpose of this thread is to identify what card reader models have unique GUIDs for licensing purposes not determine the chance you'll receive a faulty unit. We as individuals can only report on our own experiences. If you actually go back to what we have written in this thread you'll see all we said was that it worked for us, just like you have reported the issues you've had. It's up to all the lurkers reading this thead to take these individual reports and determine what to buy for their own unRAID setup.

I used the usb tool. I have couple more of that SD card reader and used them to double check. The USB tool detected each one as having a different GUID and let me install unRAID to each of them.

I'm currently using a SanDisk SDDR-B531-GN6NN micro SD reader. The micro SD card I'm using with it is a SanDisk 32GB "Max Endurance". Had no issue installing unraid on the SD card or registering my licence key to the card reader's GUID. I like this SD card reader because of its a small form factor, barely stick past the case's recess for the MB i/o shield. It's small enough that it's even suitable for being installed internally using an internal USB port if you're using a server mobo or a USB header to USB A adapter like this or this (I haven't bought or used either of the adaptors linked, they're just examples not recommendations).