Color: Black.
Product Type USB (Male)To RJ45 + USB (Female).
USB extender input Interface :USB 2.0,
compatible with USB 2.0,USB 1.1.Self-powered, no external power source is required.plug and play,no driver needed.

Ideal for use with USB cameras, printers, web cams, keyboard/mouse extensions, and any other USB devices.
Extends the distance of a USB device from a USB enabled computer up to 100 ft.
The distance and adapters may affect the performance of some devices down to USB 1.1 speed.
Package included:
1xUSB (female) to RJ45 adapter.
1xUSB (male) to RJ45 adapter.
NOTE:
standard above CAT5 copper wire,the core of the copper wire should be 0.5mm,if the USB harddisk cannot work,it might be the low power,you should power the harddisk with double head USB charger cable.