NETGEAR 48-Port Gigabit PoE+ (380W) SmartManaged Pro Switch with 4 SFP Ports - #MPN# #EAN# Wifi shop wellnet.sk
FS S5800-48F4SR 48-Port Gigabit SFP L3 Managed Ethernet Switch with 4 10Gb SFP+ Uplinks - FS.com Europe
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Amazon.com: SODOLA 48 Port Gigabit PoE Switch, 600W Unmanaged Network Switch with 48 Port IEEE802.3af/at PoE, 2 x 1G SFP, Metal Rackmount Unmanaged Plug and Play Power Over Ethernet Switch : Electronics
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