Razer has concentrated its efforts into making the Viper Ultimate the absolute best performing gaming mouse in the e-sports market, and on first impressions, it’s done an outstanding job.

Enjoy faster and smoother control with a lightweight wireless mouse designed for esports. Weighing just 74g, it achieves its weight without compromising on the build strength of its ambidextrous formfactor. Razer demonstrated (with benchmark software it had developed itself, admittedly) that HyperSpeed boasts an even more stable performance than a wired Logitech rival. Razer did admit the difference was so negligible a human wouldn’t notice the difference, but it’s still remarkable to see its mouse offering a wireless performance equivalent to a wired connection. With 16.8 million colors, countless patterns, dynamic in-game lighting effects—experience full RGB customization and deeper immersion with the world’s largest lighting ecosystem for gaming devices. Supporting a growing list of thousands of devices and hundreds of games & applications, take it to the next level with advanced features such as Chroma Studio, Visualizer, Connect andWorkshop.The Viper Ultimate relies on Razer's software suite for all its customization, including Razer Synapse to change its settings and Razer Chroma to customize its lighting. If you've used any Razer products before, the systems are as easy to use as ever. If you haven't, it's generally snap-simple to reset DPI presets and remap buttons across your profiles. Razer Chroma RGB lighting is of course still present, boasting 16.8 million colours, but is far more understated than consumer-level gaming mice. It’s only the Razer Logo that glows, and even that can be turned off via the Razer Synapse app if users find it distracting.

I went hands-on with the new peripheral to see whether those incredible specs can equate to an incredible performance. The Viper Ultimate can store up to five profiles in the mouse's internal, onboard memory, which is about standard for a high-end product. You can customize and save as many profiles as you want in the Synapse software PC-side, though, and swap them out as you move games in and out of rotation. Importantly, the Viper Ultimate feels really comfortable in my hand, and not having a cable connected is as freeing as ever. The casing is made out of plastic, but certainly still feels premium. This mouse flaunts class in every department. I was unable to test how accurate Razer’s battery claim is, since I was only given a few hours with the peripheral at Razer’s HQ office. I already have a review sample though, so watch out for our final review and verdict soon.As a righty, I tend to avoid ambidextrous mice because most are designed with a low profile and less support for your hand. The Viper line is a rare exception. Though it doesn't have a hump or a sweet spot that lets your hand fall into place, the Viper is comfortable to use, even over long stretches. At 1.5 by 2.6 by 5 inches, it can feel a little skinny compared to other mice, especially if you're switching from one not made for competition. But it's easy to adjust and find a comfortable grip. The Razer Viper Ultimate weighs 74 grams, which admittedly doesn’t make it the lightest gaming wireless mouse, but it at least undercuts the the 121g heft of the Viper Ultimate’s closest rival, the Logitech G Pro Wireless .

Successor to the award-winning Razer Viper Ultimate. More than 20% lighter, armed with all-round upgrades, and one of the lightest wireless gaming mice evercreated. Learn More > Having played a few rounds of Counter-Strike and seeing several performance demonstrations from Razer, I’ve got extremely high hopes for the Razer Viper Ultimate. If Razer’s bold claims for its new optical sensor and HyperSpeed wireless technology are true, then this mouse looks to be the best performing option for e-sports with seemingly no sacrifices made at all to go cordless. The USB wireless dongle is stored in a compartment on the underside of the mouse itself. Simply remove the cover to store or remove your USBdongle. Playing a few rounds of Counter-Strike: Global Offensive, it was genuinely difficult to tell the difference between the Viper Ultimate and a wired mouse – I even found myself winning more 50/50 shootout duels than usual. So, y ou’re not sacrificing performance at all by cutting the cord.Designed especially for e-sport players, the Viper Ultimate sees the same streamlined form as the wired Razer Viper, cutting off any excess fat or buttons to see the weight fall to a feather-light 74 grams. Factor in an impressive 70-hour battery life, and the Viper Ultimate is shaping up to be an extremely good wireless option for competitive gamers.