8-Port X2 Users CAT5e/6/7 1U Rack-Mount USB KVM Switch with IP Remote Access, 8 Interface Modules Included 84122
Modular 1U Relay Rack Mount for TP-Link TL-SG108 or Netgear GS308 8 port switches (with STEP file) by MyStoopidStuff | Download free STL model | Printables.com
Rack Mount gigabit POE 12 Port Power over Ethernet Injector for Mikrotik Ubiquiti with 48v 120w supply - AliExpress
12+12 Ethernet Fiber Switch | RLH Industries, Inc.
GPOE-12-48v240w Rack mount 802.3af POE 12 Port Passive Gigabit PoE Inj – poe-world