3" ID Cable Pass Through Wall port that fits a Wall Thickness of 7" - – Wall Eye Solutions
Amazon.com: Intellinet 5-Port PoE Passthrough Gigabit Ethernet Switch - with 1 x Gigabit PoE Input, 4 x Gigabit PoE Output, 68W Power Budget via AC Power & 26W Power Budget via PoE
Large Tubing Pass-Through Port, 1-1/4" - Labconco
USB Passthrough Mode on Video Endpoints
5 Port Gigabit PoE Passthrough Switch Outdoor Ethernet Extender Up to 100m/330ft | eBay
Intellinet 561082, PoE-Powered 5-Port Gigabit Switch with PoE Passthro — Blue Star Wholesale Distributors | Miami | Orlando
Outdoor Waterproof PoE Pass Through Switch - FASTCABLING