The NLUSB2-202A is a multi-port USB2 hub that maximises the capacity of 1 USB port by creating an extra 2 USB ports. The NLUSB2-202A is a fantastic plug and play solution for those who find USB ports scarce within a laptop or desktop. Specification Full compliance with USB 1.1 and USB 2.0 specifications. Supports Low Speed (1.5 Mbps) Full Speed (12 Mbps) and High Speed (480 Mbps) Data transfer rates. Connects up to 127 USB Devices. Over current detection and protection. Bus powered from USB port no power adaptor needed. Suitable for mobile PC Environment. No Driver needed for Windows ME 2000 and XP. Or Mac OS 10.1 or later. Driver Supplied for Windows 98SE. Easy Plug and Play installation.