2159658-1 is an RJ point five coupler designed for high-density Ethernet connectivity applications. This coupler features Cat5e F/UTP AWG 26 LSZH cable with a length of 0.25 meter, supporting 10/100/1000BASE-T applications with Category 5e performance. The RJ point five connector system offers approximately double the density of standard RJ45 Ethernet links with a 7mm port center-on-center spacing. Electrical performance specifications include insertion loss of 0.4 dB maximum at 100 MHz, return loss of 20 dB minimum at 100 MHz, NEXT loss of 43 dB minimum at 100 MHz, and FEXT loss of 35.1 dB minimum at 100 MHz. This coupler is ideal for data center switching applications, high-density Ethernet switching/routing products, and server I/O applications where space optimization is critical.