BYTECC UFE-421 3.5 USB3.0/Firewire 400/POWER e-SATA Combo Internal HUB Specifications: 4 x USB 3.0 ports 2 x FireWire 400 (1 x 4pin & 1 x 6pin) 1 x Power e-SATA for USB/eSata or Power e-Sata devices Total 7 additional ports System Requirement: Windows XP or higher