The latest Razer Diamondback ($89.99) is a high-end ambidextrous gaming mouse with fully customizable lighting and programmable buttons. Its quality build and high-sensitivity sensor provide a smooth playing experience, and the lighting effects look great on its unique wraparound strip. The ambidextrous design isn't the most comfortable, however, making it a bit too narrow to fully support your hand. The Razer Mamba remains our top choice for gaming mice given its unmatched features, including adjustable click feedback and comfortable design.

Design and Features
With a slimmer, narrower design than most gaming mice, the Diamondback measures 1.18 by 2.64 by 4.92 inches (HWD) and weighs 3.1 ounces. That's lighter than, but similar in size to, the Razer Mamba, which measures 1.67 by 2.76 by 5 inches and weighs 4.32 ounces. The body is shallower, however, and doesn't curve fully into your palm—it fails to really cradle your hand, and combined with the narrow design that doesn't offer support on the sides, it's somewhat uncomfortable overall. The device is for ambidextrous use—which is part of the reason it lacks finger-specific support on either side of the mouse—and as such, both sides have a pair of buttons for your thumb or pinky finger, depending on which hand you're using. The Logitech G303 Daedalus Apex is a similarly sized ambidextrous mouse, but it includes thumb buttons on only the left flank. The Diamondback is wired only, with a 7-foot braided fiber cable.

The body is made entirely of black plastic, with a rubber grip on each side. A single LED light strip runs around the outside of the mouse, curving around the bottom and lit up with customizable lighting effects and colors of your choosing. The scroll wheel and the Razer logo on the palm glow with customizable effects as well. You can customize the colors and patterns through Razer's Synapse software, the same program used for Razer's other mice and keyboards. It's one of the easiest to learn and understand, and makes picking your preference from 16.8 million colors and lighting effects, like pulsing and color rotating, very straightforward. The lights are vibrant, and the default effect is very eye catching, constantly running the color spectrum from one end of the strip to the other.