RJSGE Cat5e Modular Jacks Amphenol Commercial RJSGE Modular Jacks feature a unique 2x2, four-port, press-fit design that meets Cat5e performance according to EIA-568-C.2 standards. These modular jacks meet 1G and 2.5G Ethernet protocols and support transmission rates up to 100MHz. The connectors are available with standard, bicolor, or tricolor LEDs available on each port, and enhanced shielding options provide increased EMI performance. Amphenol Commercial RJSGE Modular Jacks are ideal for communications, telecommunications, consumer goods, industrial, and medical applications.