TP-Link 48-port Gigabit Rackmount Switch - MiRO Distribution
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 GS348PP 48 Port Gigabit Ethernet Switch | Comms Express