The Razer Viper V4 Pro has resurfaced in recent days after being spotted in professional esports matches and livestreams. Earlier rumors suggested that a camouflaged version of the mouse appeared during a Valorant tournament, and those claims now appear to be backed by additional sightings. Valorant professional Canezerra was seen using what is believed to be the Viper V4 Pro during a livestream, with the information circulating on social media through BestGamers on X.
Reports indicate that at least two other Valorant professionals are also using the same unreleased mouse. In addition, Prosettings.net lists League of Legends pro Myrwn as currently using the Viper V4 Pro, suggesting that early units are already in the hands of select competitive players. This follows a pattern often seen with Razer, where high-end peripherals are tested in tournament environments before an official launch.


Industry discussion points to the Viper V4 Pro sharing much of its internal hardware with the Razer DeathAdder V4 Pro, while keeping the symmetrical shape introduced with the Razer Viper V3 Pro. If accurate, the mouse is expected to include the newer dome-style wireless receiver, a Nordic 54 series microcontroller, Gen-4 Razer Optical Mouse switches, and the Focus Pro 45K Gen 2 sensor. Minor refinements such as reduced weight, subtle shape adjustments, and an updated coating are also anticipated.
With the Viper V3 Pro launching in April 2024 and the DeathAdder V4 Pro arriving in July 2025, the release timeline suggests a possible Q2 2026 debut for the Viper V4 Pro. Razer has not confirmed specifications or availability, but repeated appearances in professional play indicate that an announcement could follow in the coming months.
