Hewlett Packard 12 Port Hub With Remote RS-232 Management.
10 BaseT Ethernet Hub It supports UTP categories 3 and 5 as well as an optic cable. Console Port RS-232 management Thin LAN Port (Coax) AIU Port 12 Twisted - Pair Ports The bus rate is 10 MBps. Solid and reliable. Rackmount or stack.