This is a 7-port usb hub that comes with a power adaptor (I/p: 100-240V AC; O/p: 5V, 3.5A) and a mini USB cable.
This is excellent in its class at the given price of Rs. 1,010/-
This also works without connecting the power adaptor, if only 2 or 3 small peripherals like a usb mouse and a pen drive are connected.
Power is required if heavy devices like smart-phone / usb modem / usb hard-disk / stereo bluetooth headset (for charging) are connected.
This also doubles up as a USB charger.
Delivery was prompt (4 / 5 days).
I would have given a 5* rating if it was compact.
Nice , just one problem.
its a very fast device , very light, and easy for travel.
but the third tip is slightly bended, and sometimes it doesnt detect my mouse. Thats it.