Specifications: Support: For Windows 7, XP, Vista Color: Blue Item Size: Approx. 10.2cm * 5.5cm * 0.1cm / 4in * 2.2in * 0.04in Product Weight: Approx. 25.5g / 0.89oz Package Size: Approx. 15cm * 11cm * 3cm / 5.9 in * 4.3in * 1.2in Packing Weight: Approx. 90g / 3.16oz It provides SATA expansion ports, data protection and summarized in a variety of different applications performance. Features: It's a 5 SATA port multiplier support for up to five SATA hard drives. Supports SATA 1.5 Gbit / s or SATA 3.0 Gbit / s transmission speed. Using JMB321 chip computer host terminal, provides a DC jack for DC power input. It must be supported by SATA port multiplier function motherboard or expansion card. Supports SATA hot swap and for Windows 7, XP, Vista and other operating systems.