Description : Supports e-SATA and USB 2.0 interface Support USB 1.1 /2.0 on Window 98/ME/2000/XP/ Vista and Mac OS.x 9.2 OR higher Fits IDE/SATA I/SATA II 2.5-inch slim type hard disks USB 2.2/IDE compliant: Integrated USB transceiver High speed (480mbit) and full speed (12mbit) support . Storage Support up to 250GB SATALink SPIF225A chipset USB suspend/resume, remote wake up support Transfer Rate: 480Mbs/1.5Gbs/3Gbs The computer can be booted directly from this enclosure, USB 2.0 and 1.1 compliant Up to 480mb/sec. Plug and Play hot swapping Superslim, lightweight and portable Draws power from your USB port, no need for ac adapter (Additional power required for eSATA connection, power cable included) Dimension: 143 x 78 x 16 mm System requirements: One available USB port (either USB 1.1 or USB 2.0) or SATA Mac O/S 9.2 or above Windows 98,Windows Me, 2000 XP and Vista. One available CD-ROM drive for software installation 16MB RAM Package include: USB 2.0 2.5" USB2.0+eSATA HDD Enclosure (Brand new in retail package.) USB 2.0 Cable e-SATA Cable Power Cable Leatherette Case 8 Screws Screw driver Software CD