4550T - Nortel - 48 x RJ-45 Ports Poe 10/100Base-TX + 2 x Combo Gigabit SFP Ports 1U Rack-mountable Fa...

WS-C3560V2-48PS - Cisco - Catalyst 3560v2 48-Ports 10/100Base-TX RJ-45 PoE Manageable Layer3 Rack-mountable 1U Switch with 4x SFP Ports

SR224G - Linksys - Catalyst 24 x RJ-45 Ports 10/100Base-TX + 2 x SFP mini-GBIC Ports Layer2 Managed 1U Rack-Mountable Gigabit Ethernet Network Switch

SRW248G4P - Linksys - LinkSys 48 x Ports 10/100Base-TX + 4 x GE RJ-45 Ports + 2 x SFP Ports Layer 4 Managed Rack-mountable Gigabit Ethernet Network Switch

SG220-50P-K9 - CISCO - 48-Port X 10/100/1000 (Poe) + 2 X Combo Gigabit Sfp 1U Rack-Mountable Switch

2610-48-POE - HP - ProCurve 2610 Series 2610-48 48 x RJ-45 Ports PoE 10/100Base-TX + 2 x RJ-45 GE Ports + 2 x SFP miniGBIC Ports Layer 2 Managed Rack-mountable Stackable Fast Ethernet Network Switch

WS-C3560V2-48PS-SM - Cisco - Catalyst 3560v2 48-Ports 10/100Base-TX RJ-45 PoE Manageable Layer3 Rack-mountable 1U Switch with 4x SFP Ports