DETAILS: The 3Com Switch 4500 26-Port stackable Ethernet switch features rich Layer 2 switching and dynamic Layer 3 routing in a cost-effective, high performance platform.With robust security, extensive management, traffic prioritization and quality of service features, the Switch 4500 26-Port capably handles emerging business applications.Up to eight switches can be stacked via Gigabit Ethernet ports, allowing single-IP management for an entire stack.24 10/100 ports and two dual-personality Gigabit ports allow the Switch 4500 to provide secure, dependable LAN connectivity for small to medium enterprise and branch office networks. Product Description: 3Com Switch 4500 - switch - 26 ports Device Type: Switch - stackable Form Factor: External - 1U Dimensions (WxDxH): 17.3 in x 10.6 in x 1.7 in Weight: 7.3 lbs Localization: United States Ports Qty: 26 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, RMON 1, RMON 2, RMON 3, RMON 9, Telnet, SNMP 3, HTTP Communication Mode: Half-duplex, full-duplex Features: Flow control, layer 3 switching, layer 2 switching, auto-sensing per device, auto-negotiation, IGMP snooping, traffic shaping, packet filtering, port mirroring Compliant Standards: IEEE 802.3, IEEE 802.3u, IEEE 802.3i, IEEE 802.3z, IEEE 802.1D, IEEE 802.1Q, IEEE 802.3ab, IEEE 802.1p, IEEE 802.3x, IEEE 802.3ad (LACP), IEEE 802.1w, IEEE 802.1x Power: AC 120/230 V ( 50/60 Hz ) Manufacturer Warranty: Limited lifetime warranty UPC: 0662705496238