Allied Telesis - 10 PORT 10/100/1000TX WEBSMART V2 AT-IGS950/52PS-950 1000BASE-T X 48 + 1000BASE-T X 4/1000BASE-X (SFP) X 4 (COPPER/FIBER COMBO) WEB SMART SWITCH WITH POE. POE CLASS 4 (30W) FOR PORT1-48

D-Link - SMART MANAGED SWITCH 52-PORT GIGABIT POE+ NUCLIAS

D-Link - SWITCH 48 PORTE 10 100 1000+4 SFP

D-Link - 52-PORT 10 100 1000 GIGABIT SWITCH 370W POE

LEVELONE - GTP-5271 - SWITCH 52-PORTE GIGABIT L3 LITE MANAGED POE 400W, 4x 10GbE SFP+ 52-Port L3 Lite Managed Gigabit PoE Switch 4x 10GbE SFP+ 48 PoE Outputs 400W IEEE 802.3af/at PoE compliant

LEVELONE - GTU-5211 - SWITCH 52-PORTE GIGABIT UNMANAGED 48x RJ45, 4x 10GbE SFP+ GTU-5211