L3 10Gbe Switch with 48 Ports and 40G Uplinks - FS.com
Amazon.com: Cisco SG350X-48 Stackable Managed Switch with 48 Gigabit Ethernet (GbE) Ports, 2 x 10G Combo + 2 x SFP+, Limited Lifetime Protection : Everything Else
TP-LINK JetStream 48-Port Gigabit and 4-Port 10GE SFP+ L2+ Managed Switch with 48-Port PoE+ (TL-SG3452XP) - The source for WiFi products at best prices in Europe - wifi-stock.com