11 colors are available: black, blue, red, green, purple, pink,orange,silver,white,gray,yellow; 50 pcs per lot; good quality and high speed grade a chips; operating temp: -10 to +55deg.c storage temp: -20 to +55deg.c support windows 7 / 8 / 10 / vista / xp / unix / 2000 / me / nt linux and mac os 9.0 or above; compatible with usb2.0 backwards usb 1.1 send message to us by dhgate if you need customized logo print service