1. HDD :Two 2.5/3.5 SATA HDD 2. Rate:480Mpbs/USB3.0 5GB 3. Multi-function All In One HDD :Two 2.5/3.5 SATA HDDRate:480Mpbs/USB3.0 5GBOperating system: Win98SE/7/ME/2000,Mac OS, Linux interface : USB3.0vertical mountingplug and playPower: Input: 100-240V, 50/60Hz, 1.0A Output: 12.0V-2A 5.0V-3500mADecvice:Adapter,USBcable,Adapter cable