The current version of the driver (1.03) does not allow replacing the Universal Scroll with just a third button. This shortcoming is expected to be corrected in the next driver release.
Additional side buttons have always been a problem with this manufacturer. It was too easy to press them accidentally on the Boomslang when you lifted the mouse up above the desk. The Diamondback had as many as four side buttons, two of which could hardly be pressed at all. These buttons were placed normally on the Copperhead, but were shaped improperly and prone to be pressed accidentally due to their small pressure effort and short depression distance. And finally the company has got near the ideal. There are two side buttons here which are placed like on the Copperhead (centered on the left side), but larger and round-shaped. They are also to be pressed with more effort. It means you can hardly press them accidentally as you lift the mouse up.
As I wrote above, the overall shape resembles a mix of the Diamondback (in the front part) with Microsoft’s Explorer mouse (in the rear). And although the DeathAdder is not as large as Logitech’s bulky MouseMan series (remember such?), it is surely better grasped with the whole palm rather than with the fingers. I prefer holding the mouse like that and it was at first difficult for me to transition from the Diamondback, which was perfect for fingers, to the DeathAdder. The dimensions and ergonomics of the device may seem to worsen control over in-game situations at first, but I got used to the new mouse in about a week and now play quite confidently with it. The DeathAdder can even be held with fingers too, you only have to adjust yourself to the asymmetrical shape.
On the other hand, I guess that people who like to put their palm down on the mouse, especially the admirers of Microsoft’s peripherals, are going to love the DeathAdder.
The side surfaces are made of smooth plastic which doesn’t improve the grip between the hand and device. There are no rubber inserts as on the Viper or Diamondback, but this problem is solved by the ingeniously shaped profile with grooves for the fingers and the thumb’s resting upon the additional buttons panel. After some period of adaptation the DeathAdder proves to be as easy to carry over above the pad as any other Razer mouse.
There are three white Teflon feet on the device’s bottom: two in the corners of the front part and one wide foot at the back. Their material is typical of Razer mice and is referred to in the marketing materials as “Zero-Acoustic Ultraslick Teflon Feet”, which is in fact what they are. The DeathAdder glides confidently and with less noise than ordinary mice even on complex surfaces like the glass Icemat or the aluminum BansheePad. This mouse moves about just like its competitors do with Teflon glide tapes glued to them.
The engineers made one mistake as they designed the DeathAdder: the bottom surface is not ideally flat, but somewhat bulging. That’s why the central part touches the pad and gets scratched. This doesn’t affect usability, but some people may not like that. You can solve this problem by making the feet thicker by means of special stickers. By the way, Razer says that Everglide, the famous manufacturer of professional gaming surfaces and accessories for mice, will soon begin to produce special stickers that are shaped like the feet of the DeathAdder.
The optical sensor is exactly in the center of the mouse, which is good. When the user moves the mouse along an arc, it is models with a central positioning of the sensor that behave exactly like you subconsciously expect.
Near the sensor there is a button to switch between the settings profiles stored in the integrated memory. When this button is pressed, the mouse’s highlighting blinks appropriately. For example, if you switch from the third to fourth profile (you can save as many as five profiles in total), you’ll see the DeathAdder blink four times.
The generous 210cm of USB cord guarantee easy connection to the PC. Traditionally for Razer, the connector has gold-plated pins.