[COMPATIBILITY] The programming cable is only compatible with for BAFANG BBS01B BBS02B For BBSHD motor with UART protocol . It doesn't work with Ultra motor like M620 M500 M600 M420 M200[SPECIFICATION] Waterproof Connector : Female 5PIN Length : 22.9inch[FUNCTION] A. Change the basic user level of the controller B. Reduce the current C. Enable full throttle at PAS level 1-9 ,etc[COMPUTER SYSTEM] You computer should be win7 system. Some win10 system can also be compatible with, but not all the win10 system can work, please kindly note that.colour:As shownMaterial:PVCPackage Contents:1 x Programming CableOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.