3com ETHERLINK 10/100 PCI SECURE NIC 25-PACK. Data link protocols: TCP/IP, ISO 8802-3, Management protocols: SNMP manageable; 3Com Connection Assistant, 3Com Managed PC Boot Agent. Security algorithms supported: MD5, SHA-1. Built-in processor: ARM9 security processor, 100 MHz RISC. Dimensions (WxDxH): 13.34 x 6.35 mm. Safety: Meets FCC requirements, FCC B, CE, C Tick