RJ45-DB9 (Female) Adapter for C2/L2-RJ45 Console Cable - Get Console Shop
Amazon.com: cablecc Locking Waterproof CAT6 RJ45 Female to Female LAN Ethernet Network Extension Adapter Coupler : Electronics
RJ45 Ethernet Splitter Cable, TSV RJ45 1 to 2 LAN Network Adapter Ethernet Splitter Cable Male to Female Fit for Cat5, Cat5e, Cat6, Cat7 LAN Ethernet Socket Connector Adapter - Walmart.com
NXT Technologies™ RJ45 to RJ45 Ethernet Coupler, Female to Female (NX56843) | Staples