Great working Sonos connect from a non-smoking, pet free home, and fan cooled all it's life. The 22uf capacitor has been replaced by myself, (the reason for back plastic being peeled back) this is the capacitor that fails completely or intermittently on these things, but it's a simple fix to keep it from being tossed in the trash. Manufactured 7/17, I only used analog L/R audio out and hooked up with Ethernet, so the coax, optical and Wifi functionality haven't been tested but I don't see any reason why they wouldn't. Comes with power cable, compatible with Sonos S2 OS, and new Sonos App releasing May 7, just removed these from my system today, so they have been tested, completely wiped clean and have the green light for pairing to your system.