Features:
1) Plug-and-Play and hot-swappable
2) Supports Windows 98 / ME/2000 and iMac / Macintosh
3) Easy expansion with other USB Hubs, allows the use of up to 127 devices
4) Supports 1 upstream and 4 downstream USB ports
5) All downstream ports support high-speed (12Mbps) and low-speed (1.5Mbps) operations mode
6) Power control/overload detection on each individual USB port
7) Single status LED
8) Bus-powered; does not require AC power adapter