Portable HDD with simple operation: 1. Just insert the USB port for use and it supports hot inserting and pulling. 2. USB2.0 (USB1.1 compatible) supports 2.5 inch hard disk with 80Gb or over. 3. No need driver except Win98. 4. Connection cord: Special USB2.0 cord with high speed. 5. Data transportation speed: 480Mbps. 6. Power Supply: PS/2 or USB Power. 7. Suitable for table PC, laptop & Apple PC with Windows98/ME/2000/XP or Mac OS 8.6, 9.X system