CISCO - ETHERSWITCH HWIC - SWITCH - MANAGED - 9 X 10/100 - PLUG-IN MODULE - POE - FOR CISCO 1921 4-PAIR (HWIC-D-9ESW-POE). SPECIFICATIONS - PRODUCT DESCRIPTION : CISCO ETHER SWITCH HWIC - SWITCH - 9 PORTS - DEVICE TYPE : SWITCH - FORM FACTOR : PLUG-IN MODULE - DIMENSIONS (WXDXH): 6.2 IN X 4.7 IN X 0.7 IN - WEIGHT : 0.2 LBS - PORTS QTY : 9 X ETHERNET 10BASE-T, ETHERNET 100BASE-TX - DATA TRANSFER RATE : 100 MBPS - DATA LINK PROTOCOL : ETHERNET, FAST ETHERNET - REMOTE MANAGEMENT PROTOCOL : SNMP 1, SNMP 2, TELNET, SNMP 3 - COMMUNICATION MODE : HALF-DUPLEX, FULL-DUPLEX - FEATURES : FLOW CONTROL, FULL DUPLEX CAPABILITY, LAYER 2 SWITCHING, AUTO-SENSING PER DEVICE, AUTO-NEGOTIATION, TRUNKING, VLAN SUPPORT, AUTO-UPLINK - COMPLIANT STANDARDS : IEEE 802.3, IEEE 802.3U, IEEE 802.1D, IEEE 802.1Q, IEEE 802.1P, IEEE 802.3X, IEEE 802.1X CONDITION : REFURBISHED. AVAILABILITY : IN STOCK. OUR WARRANTY : 30 DAYS.