USB interface cable for APC UPS: (better specs here: http://pinouts.ru/DevicesCables/apc_usb_cable_pinout.shtml ) RJxx end (looking against the connector): ------ | -- 1 - green - USB 3 - USB+ | -- 2 - white - USB 2 - USB- | -- 3 _| -- 4 - black - usb 4 - GND | | -- 5 |_| -- 6 | -- 7 - brown - shield | -- 8 | -- 9 | -- 10 - red - usb 1 - +5V ------ USB end (looking against the connector): ----- | | | | X| | 1 - red - +5V | | | | X| | 2 - white - USB- | | | | X| | 3 - green - USB+ | | | | X| | 4 - black - GND | | | ----- shield - brown - SHIELD