DIRECTV Receiver DECA Ethernet to Coax Adapter (DCA2SR0) Generation II - Black
This simple adapter will let you use an HR20, HR21, HR22, THR22 (TiVo), H21, or H23 receiver with a single-wire system for whole-home viewing. Easy installation - connect one end to the coaxial cable and then connect the attached coax and Ethernet cables to your receiver. Connect to the internet using the menus and you're all set to go!