Introduction The USB 2.0 4-Port HUB allows you to attach and link all your USB devices (up to 127 devices) to your computer via USB port. This HUB supports all three specifications: Low- speed (1.5Mbps), Full- speed (12Mbps) and High- speed (480Mbps). Package COntent 1 x Hardware: USB 2.0 4-Port HUB 1 x User’s Manual or CD Manual 1 x USB2.0 A-B Cable 1 x Power Adapter 5V 2.6A Product Features True USB 2.0 Specification and USB Specification Revision 1.1 Compliant Ultra Lightweight and Portable Design Ideal For Travel Compact-Size USB Extension (Link Up To 127 USB Devices) Hidden/ Glowing Blue LED Lights OHCI Specification for USB 1.1 Compliant Transmitting Rates at High-speed (480 Mbps), Full-speed (12 Mbps), and Low-seed (1.5 Mbps) transaction. Supports Plug & Play and Hot Swappable Capability System Requirementes PC PC Pentium II 266MHz CPU or higher or compatible system Windows® 98SE, Windows® ME, Windows® 2000, Windows® XP MAC Power G3,G4 or I-Mac Available USB Port Mac OS X 10.1 or higher