YuanLey 48 Port Gigabit PoE Switch Unmanaged with 2 1000Mbps SFP Uplink, 50 Port 802.3af/at 800W High Power PoE+ Network Switch, Metal Rackmount Power Over Ethernet Switch: Amazon.co.uk: Computers & Accessories
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
NETGEAR GS752TPv3 48-Port Smart Managed Pro Rackmount Gigabit PoE+ Switch w/ 4 x 1G SFP Ports (380W)
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 48-Port Gigabit Ethernet Unmanaged PoE+ Switch (GS348PP) - with 24 x PoE+ @ 380W, Desktop or Rackmount : Amazon.co.uk: Computers & Accessories