Using POE switches to reduce cabling - Connect POE switch to NVR - Installation Guide
PoE Switch, 8 Port PoE Switch for IP Cameras with 2 Uplink Ports - Unmanaged Smart Power Over Ethernet Switch with Metal Housing & Fanless Design - 120W - Desktop - IEEE 802.3af/at
MikroTik Routers and Wireless - Products: CRS112-8P-4S-IN
Mikrotik CRS112-8P-4S-IN 8 Gigabit Port PoE Smart Switch with 4 SFP Cages
Power Over Ethernet - PoE | NETGEAR
BV-Tech 6 Port PoE+ Switch (4 PoE+ Ports with 2 Ethernet Uplink and Extend Function) –
Netgear GS305EP Review PoE+ 63W Switch with L2 Management