xcluma USB to TTL Serial Cable Debugger for Raspberry Pi Beaglebone Cubietruck Pl-2303hx USB to serial controller adoptedapproximately 1m long cable 4 connecting wires, 2. 54mm pitch type. Red= 5v, black= gnd, white= rxd, green= txdsupports baud rate from 75 to 128000 support win 98 or above (win 7 64-bit supported), mac os x or above, linux.