Cisco Catalyst 3560 48 Port Switch POE - WS-C3560-48PS-S - 5 Year Warranty
S5810-48TS-P, 48-Port Gigabit Ethernet L3 PoE+ Switch, 48 x PoE+ Ports @740W, with 4 x 10Gb SFP+ Uplinks, Support Stacking, Broadcom Chip - FS.com
MokerLink Store - MokerLink 48 Port PoE Gigabit Managed Switch
S5500-48T6SP-R, 48-Port Gigabit Ethernet L3 PoE+ Switch, 48 x PoE+ Ports @740W, with 6 x 10Gb SFP+, Support Stacking - FS.com Europe
48 Port POE Network Switch | GS110-48P | Meraki Go : Meraki Go
Amazon.com: 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 : Electronics