Specs

Product Name: 3Com Switch 4500 - switch - 24 ports
Device Type: Switch - stackable
Form Factor: External - 1U
Dimensions (WxDxH): 44 cm x 27 cm x 4.4 cm
Weight: 3.3 kg
Ports Qty: 24 x Ethernet 10Base-T, Ethernet 100Base-TX
Data Transfer Rate: 100 Mbps
Data Link Protocol: Ethernet, Fast Ethernet
Auxiliary Network Ports: 2x1000Base-T/SFP (mini-GBIC)(uplink)
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