DIRECTV Receiver DECA Ethernet to Coax Adapter (DCA2SR0) Generation II (2-pack) Save when you purchase a 2 pack! Must be used with a DirecTV receiver. If you do not have a DirecTV receiver please use the Broadband Deca. May not be compatable with cable service or over the air antenna using the same coax. The DECA network is a shared 200Mb/s, or the same speed as full duplex 100Mb/s Ethernet DECA system is used in conjunction with the SWM LNB, SWM8 or SWM16 to give receivers internet access through the coax coming from the SWM Switch