Cat5 Cat6 Ethernet Extension Cable RJ45 Cat 6 Male To Female Rj45 Ethernet Lan Network Cable Adapter For PC Laptop 30cm 60cm 1M - AliExpress
HTGuoji RJ45 Adapter Cable RJ45 Male to Dual Female Adapter Extender Support Ethernet Cat 5/CAT 6 LAN for switching networks between two computers 20 cm (not used as a network splitter) :
RJ45 Cat 6 Male to Female Ethernet Lan Network Extension Cable with Panel Mount | eBay
Cat 8 SuperSpeed 40 Gbps RJ45 Ethernet Network Extension Cable Male to