Philips SPD5115CC 250 GB USB2.0/FW400 External Hard Disk, 250 GB, 3.5", 2.0, 7200 RPM Philips SPD5115CC 250 GB USB2.0/FW400 External Hard Disk. HDD capacity: 250 GB, HDD size: 3.5". USB version: 2.0. HDD speed: 7200 RPM