The Razer Imperator 2012 gaming mouse-set to launch in 2011, despite its name-is a new and improved version of the original Imperator mouse.

Thumb buttons can be moved backwards and forwards; Adjustable lift-off tracking distance; Braided cable; comfortable design; backlighting can be switched off; Driver with plenty of functions: macros; frequency (125 to 1000 Hz); etc; Very light; pleasant to handle; good glide

Our test model couldn't reach the 5 metres per second promised; The stepped scroll wheel isn't as flexible as the adjustable scroll wheel in the Logitech G500; Heavy CPU use at 500 and 1000 Hz; Sensitivity: 6400 dpi is pure marketing

I have been using this for about a month. Ergonomics is ok but not that great. Unless your hands are very big, you will find it a bit difficult to get to the no. 9 button on left side of the mouse.

Let me start by saying this is my first "gaming" mouse. I've always used stock mice that came with my computers until I finally decided to buy this mouse from Razer. The first thing I noticed was the comfort. Using it for a long period of time didn't leave my hand feeling tired like some other mice.

Razer are one of those big companies that have been in the gaming peripheral market for quite a long stretch, so it's always with some excitement that we crack open a box of one of their latest products.

Looks great; Very comfortable; Incredibly sensitive DPI; Very accurate; Excellent software

Bit expensive for some; Macros are limited to certain number of keys

Looks and feels great, works well, while it lasts. 2 stars because it broke down after less than 2 years of use. Just came out of warranty, too. Not recommended at all, at this price.

Coming off a standard optical mouse, this issue is super. I can't think how precise the tracking is. The mouse arrow no longer jitters when moving slowly. The feel is superb, the wheel feels solid. If anything, the application does have a small finding out curve.

It's really comfortable, I don't actually like the ajustable side buttons but apart from that its great

One of my best buys yet

I wanted a decent gaming mouse, but was not willing to take a chance on a cordless one. After a few hours of research and reading reviews I decided to buy the Razer Imperator. I must say this is the first gaming mouse I have bought, but I couldn't be happier with my purchase.

The new Razer Imperator 4G is an ergonomic gaming mouse that features a ridiculously precise 4G Dual Sensor System that makes use of both a laser and optical sensor to enhance tracking precision.