Review on 📀 KEXIN 10PCS 8GB Flash Drive Thumb Drive - High-Speed USB Memory Sticks - 8G Silver (Pack of 10) by Mark Hayes

Tested all 10 drives (5 colors), 8 tested stable at 9-12 Mbps (USB 2). Ironically, of the 2 black drives, one tested consistently higher (11-18 Mbps) and the other black drive significantly lower (0kb - 17kb - 100kb - 4mb). So, not sure what's going on there, but generally good enough for my purposes. I haven't had them long enough to determine durability and as the speed of the 2 black discs varies significantly I'm unsure on quality control. (I would probably give 5 stars if the 2 black disks matched the rest better.)