OEM 48 Port SFP Network Switch with 4 Extensible 10g Ports - China 10g Switch and 12 Port 10g Switch price | Made-in-China.com
Amazon.com: 48 Port Gigabit PoE Switch Unmanaged with 48 Port IEEE802.3af/at PoE+@400W, 2 x 1G SFP, NICGIGA 50 Port Network Power Over Ethernet Switch, Desktop/Rackmount : Automotive
Switch 48-port Gigabit 4 x SFP/Giga ports + 2 x 10GE Stack/uplink ports,
S5810-48FS, 48-Port Gigabit Ethernet L3 Switch, 48 x 1Gb SFP, with 4 x 10Gb SFP+ Uplinks, Stackable Switch, Broadcom Chip - FS.com Europe