The good Has fast throughput speeds A large capacity A portable and sleek design at an affordable price The bus-powered device is backward compatible with USB 2.0 Comes bundled with backup software A generous five-year warranty The bad Doesn't have FireWire or eSATA connections The included backup software only works with PCs The Seagate BlackArmor PS 110 is the first USB 3.0 external hard drive we've reviewed and it proved itself to be an excellent storage device. The drive is bus-powered and works with USB 3.0 and USB 2.0 connections. Externally, the Black Armor PS110 USB 3.0 looks the same as the USB 2.0-based BlackArmor PS110 — that is to say it's very sleek and portable

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Seagate BlackArmor PS 110 USB 3.0