1 RJ45 extension adapter 1 to 3 outlets 30 days money back 12 month free replacement warranty for manufacturing defects Product Description: Standard 8P8C design. Pure copper gold-plated needle (eight core): The transmission is more stable, it has a superior connection and transmission It can be compatible with ADSL, hubs, switch, TV, set-top box, router, wireless device, computer, with Cat5, Cat5e, Cat6, Cat7. Allow three computers to share high-speed DSL ports, cable modem and Ethernet No router required NOTE: This Ethernet splitter allows (three) computers to share one Ethernet line ONE AT A TIME, but it does not support both computers to connect to the Internet simultaneously Specification: Model: RJ45 Material: ABS Color: Black & lt; Connector on first end: 1 x RJ-45 Male Network Connector on second end: 3 x RJ-45 Female Network Ports Ethernet No router required It allows three computers to share an Ethernet line one at a time. Compatible with ADSL, hubs, switch, TV, set-top box, router, wireless device , computer.