The 1000,2000, 3000, 4000, 5000, JVC-DVHS, 7100, and 7200 can use it but cannot see the 4th sat port input. The 6000u can see all 4 sats, but the 6000 will see it as a SW21 4 sat setup. 1000,2000, 3000, 4000, 5000, JVC-DVHS, 7100, and 7200 will see it as a sw64.