Amazon.com: MikroTik CRS354-48P-4S+2Q+RM Switch has 48 x 1G RJ45 Ports and 4 x 10G SFP+ Ports. 2 x 40G QSFP+ Ports for Extremely Fast Fiber Connections or Linking with Other 40 Gbps
MIKROTIK CRS354-48P-4S+2Q+RM 48 PORT GIGABIT POE SWITCH WITH 40G QSFP+
Amazon.com: MikroTik Gigabit Ethernet Smart Switch with PoE-out and RouterOS L5 (CRS112-8P-4S-IN) : Electronics
EdgeSwitch 48 port 500W Gigabit POE switch, Rack - Wireless-Bolt