It look like a spy, it walks like a spy, it dresses like a spy, it talks like a spy...maybe its a spy!

RJ45 to RJ45 Ethernet Cable Coupler F-F Metal Shielded from ScanFX

Features• Shielded RJ45 CAT5e Coupler
• Metal Housing
• To connect two network cables to each other Cat5e certified (networks up to 100 MBit) Wired 1:1
• Connections: RJ45 connector to RJ45 connector
• Specification: CAT 5e

https://www.scan.co.uk/products/scanfx-rj45-to-rj45-cat-5e-coupler-metal-shielded-to-extend-rj45-cable