The Edge also comes in a single capacity point, at just 500GB for simplified build, marketing and support. For slimness, the Edge forgoes the FireWire ports found on the My Studio drives, opting for a single BUS-powered USB 3.0 interface. The My Passport Edge for mac picks up a few other changes from its larger capacity My Studio cousins. The 1TB Studio and the slightly more rotund 2TB My Passport Studio have lead the way, now complimented by the My Passport Edge for Mac, which brings the polished ID to a strikingly slim 500GB USB 3.0 portable. The 500GB WD My Passport Edge portable hard drive for Mac users picks up on Western Digital’s revised design for their portable drives. Over the last year Western Digital has been busy redefining the design of their entire external portable hard drive line, none more evident than the sleek new metal bodies given to their My Passport Studio drives designed for Mac users.