This USB 2.0 Docking Station is a unique expansion unit specially designed to accompany notebook or desktop computers that have extra connectivity demands. With only one USB port required from a notebook/desktop PC, additional USB as well as conventional Parallel I/O, Serial I/O, LAN and PS/2 peripheral devices can be accessed.
The USB 2.0 Docking Station allows you to add two additional high performances USB 2.0 peripheral devices to your PC. Furthermore, this product is fully backwards compatible with USB 1.1 products, which means your previous USB 1.1 devices can continue to function as well. You can also add additional hubs to accommodate up to 127 total USB devices.

The benefits in using the docking station is to be able to utilize peripherals without needing to turn off the computer, not needing to connect several cables to your computer, and to avoid hardware setup and complex software installation. With the docking station, one can simply plug and play all kinds of USB/conventional peripherals at a time without worrying about the availability of ports or the need to reboot the computer.
Product Features:
Fully compliant with USB 2.0 specifications.
Maximum transfer rate of 480Mbps.
Support PS/2 keyboard/mouse, IEEE-1284 parallel printer, serial device (USB file transfer, 10/100 LAN connections).
Additional USB 2.0 ports.
Fully compliant with plug & play and hot swapping.
Self and bus powered mode supported.
Product Specifications:
One upstream USB 2.0 Type B port, use this port to connect to computer USB port.
I/O Ports:
* Two USB 2.0 downstream Type A ports
* One PS/2 Keyboard port Mini Din 6 pin, One PS/2 Mouse Port Mini Din 6 pin,
* One serial port DB 9 pin male,
* One parallel port DB 25 pin female,
* One 10/100M LAN port 8P8C RJ-45
Power: AC Input 100 V~240V, DC Output 5V, 2.5A
Environments: Operating temperature: 0°C~40°C , Storage temperature:-10°C~80~°C, Humidity: 90% RH (No condensing)