I spent some time finding the perfect gaming mouse. I think Ive found it. Forget that you dont know who A4 Tech is, I dont either. This is a quality piece of merchandise. From the second you take it out of the package you will know what I am talking about. The materials used are not light cheap and flimsy. It has stood up to constant use and looks exactly the same as the day I bought it.
The shape is reminiscent of the razer salmosa with its high raised back and straight sloping left and right buttons, as such it fills your palm and allows a secure grip. It is even possible to use a raised finger tip grip as the included slick feet allow the mouse to glide very easily.
Seven true buttons in all, one the dpi shift (signalled by programmable colour shifts). Two side mounted back and forward buttons (a little bit too high mounted for my hand) and a third trigger located on the inside edge of the left mouse button. This is very handily located to be programmed with macros to fire a three round burst in fps games. The sensor at 3200 dpi offers more than enough overhead for most gamers (though I admit it does come in handy when playing with the new ultra high res SLS eyefinity system) you should be more than happy with its accuracy, especially if you are upgrading from a stock mouse for the first time.
Overall this is the standard that all gaming mice should be compared to. It does everything well, which is something that razer cant claim. The X748k is a bomb proof mouse that I hand out with all my gaming machines.