This is an IBM Lenovo Rear I/O board for ThinkCentre A70z, it is FRU 03T6011. It has the following ports, 3 x USB, 1x RJ45 LAN Ethernet, and 1x Serial. This is a NEW OEM part, it was originally manufactured by OEM as part of a system. We have repackaged it for individual retail sale. It is being sold as pictured and does not include any additional parts or accessories.