USB 2.0 and IEEE-1394a/b Internal Hub supports up to 127 USB devices and up to 63 IEEE-1394a/b devices like Keyboard, Mouse, Scanner, Printer, CD-RW, DVD-RW, Digital Camera, Portable HDD, Modem, Flash Drive, Card Reader, and etc. It is designed and made to be installed in any 5.25" bay for a quicker and easier way to access the USB and IEEE-1394a/b Ports from the PC.

Fully Compliant with USB Specification 2.0/1.1
Fully Compliant with IEEE-1394b/1394a-2000/1394-1995 Standards
Provides up to four (4) USB Ports for Device Connections
Provides up to two (2) IEEE-1394a/b Ports for Device Connections
Supports Data Transfer Rate of 480 Mbps @ High-Speed, 12 Mbps @ Full-Speed, and 1.5 Mbps @ Low-Speed for USB Ports
Supports Data Transfer Rate of 800/400/200/100 Mbps for IEEE-1394 Ports
Supports Hot-Swapping for a Quick Switch in USB and IEEE-1394 Devices without Shutting Down your PC
Supports Simultaneous Operation for Multiple USB and IEEE-1394 Devices
Supports Bus Powered Mode

Chip (IEEE-1394): TI
Chip (USB): NEC
Speed (IEEE-1394): 800/400/200/100 Mbps
Speed (USB): 480/12/1.5 Mbps
USB Compliant Version: USB 2.0/1.1 Device Port Connector: USB Type A/F x 4
Host Port Connector: USB Type A/M
IEEE-1394 Compliant Version: IEEE-1394a/b
IEEE-1394 Connector: IEEE-1394a 6P/F x1 & b 9P/F x1
LED(s): 2
Power Adaptor: BUS
Cable Length: 0.8M
Dimension (inch): 5.25"