This Dell PowerConnect 7048P 48 Port Gigabit Layer 2 3 PoE Managed Ethernet Switch has been fully tested and is in good working condition. 4 Combo (SFP or 10/100/1000) Gigabit Ethernet ports;. Optional 10Gb Modules: Dual-Port 10 Gigabit Ethernet uplink modules with SFP+ or 10GBASE-T.
eBay