Features:

1. Fully compatible with USB 2.0 & USB 1.1
2. Support transfer rate of 1.5/12/480 Mbps
3. 500mA each port is reliable at up to 15 feet of transmission
4. Support self-powered mode, hot plug & play
5. Downstream ports have automatic connect, speed detection, over-current protection and auto recovery
6. 4 slots supports 52 types of flash cards, Support SDHC
7. USB interface can be hot swappable and Plug & Play.
8. 4 slots can be used at the same time for data exchange
9. Compatible with Windows 98SE/ME/2000/XP & Mac OS X