Amazon.com: PS VR Starter Pack (PS4) : Video Games
SONY PLAYSTATION VR (Ps4/Psvr) Unità Processore Di Ricambio (V2) - 7Tzpo EUR 35,06 - PicClick IT
PlayStation VR's processing unit doesn't add any power to the PS4 - Polygon
I just got this PSVR used on eBay. It didn't have a pic of the little black box (sorry, don't know the name), but I'm guessing it's there because of the box