For optional use with LINDY 2.5\" External Drive Housings Can also be used with our 4 Port USB 2.0 Smart Hub (42998) This PSU should be used - when installing hard drives that require more than 400/500mA when connecting the USB 2.0/FireWire Drive Housing to a 4 Pin FireWire port. This is because, unlike 6 Pin FireWire ports, the 4 Pin port does not provide the connections for bus-powered devices Input: 200-240V AC ~ 50Hz 0.4A Output: Regulated, 5V DC - 2.6A Connector: Round, 1mm inner diameter, 3mm outer diameter, positive (+) on centre contact