Managed Gbit 48 Ports Poe Switch with 4 SFP Optical Fiber Uplink Full Gigabit Switch Max 6kv Lightning Protection - China 48 Port Poe and Poe Switch 48 Port price | Made-in-China.com
NETGEAR PoE Switch 24 Port (GS348PP) 48 Port Gigabit Ethernet Switch with 24 x PoE+ 380W, Desktop/Rackmount, Sturdy Metal : Amazon.co.uk: Computers & Accessories
48-Port Managed Gigabit PoE+ Switch with 4 10G SFP+ Uplinks 740W TAA Compliant | Linksys: US