In competitive play, the players who keep improving are the ones who always want gear that’s fast, consistent, and easy to rely on. That’s the philosophy behind the Razer Viper line — performance without complexity — and it’s what helped the Razer Viper V3 Pro become the #1 Mouse used by esports pros. When your gear stays simple, stable, and predictable, you stay focused on what matters: playing your best.
The Razer Viper V4 Pro is the next step in that journey, built for players who want even more responsiveness and precision without changing the shape, feel, or reliability they already trust.
Speed That Turns Reactions Into Wins

When milliseconds decide engagements, the responsiveness of your mouse becomes part of your muscle memory. With Razer HyperSpeed Wireless Gen-2, the Razer Viper V4 Pro delivers performance tuned for high pressure competitive moments.
- ~0.204 ms click latency ensures your reactions register instantly.
- Motion latency up to 2.5 times faster than competitors helps your aim stay steady through flicks, sprays, and rapid directional changes.
This is speed designed to translate raw reaction time directly into in-game impact.

Next Level Precision with the Focus Pro 50K Optical Sensor Gen-3

Tracking accuracy defines how confident you feel during fast aim adjustments and the Razer Viper V4 Pro pushes that precision further with the new Razer Focus Pro 50K Optical Sensor Gen-3.
Introducing the industry‑first Frame Sync feature – a synchronized sensor tracking technology that perfectly aligns sensor frames with the mouse’s scanning and polling cycle. This boosts real‑world aiming consistency by:
- Reducing micro‑stutter
- Smoothing high‑speed tracking
- Stabilizing flicks and directional changes
- Improving efficiency for longer battery life
Whether you’re clearing tight angles or adjusting mid‑spray, the result is motion that stays clean and predictable.
Unmatched Control for Every Clutch Moment
Every click matters, especially under pressure. The Razer Optical Mouse Switches Gen-4 are built to deliver clean, consistent control since the first click. With a tuned 0.25 mm actuation distance and balanced pre‑/post‑travel, they offer a crispier feel, zero debounce delay, and instant, reliable response when it counts.

It’s also the first Razer Viper that adopts the Razer Optical Scroll Wheel – 3.3 times more reliable than mechanical wheels and engineered to avoid reverse, ghost, or missed scrolls. Weapon swaps, utility cycling, and high‑speed inputs feel more controlled than ever.
Together, these elements create a mouse that behaves exactly as expected in your highest‑stakes moments.

The Razer Viper V4 Pro maintains the pro‑trusted shape at just 49 g*, with weight reduction that doesn’t compromise balance. Its internal structure is now up to 2× stronger, delivering an ultra‑light build that still holds up under intense competitive play.
*50 g for White Edition
The Deadliest Duo for Competitive Play — Razer Viper V4 Pro & Razer Gigantus V2 Pro

A high-performance mouse performs best on the right surface.
The Razer Gigantus V2 Pro offers five speed rating options to choose from, you can fine-tune how your mouse responds—whether you prefer faster glide for wide flicks or more controlled resistance for precise adjustments.
Together, the Razer Viper V4 Pro’s enhanced precision and the Razer Gigantus V2 Pro’s optimized glide work in sync to support intentional, confident movement — helping you execute every action exactly the way you mean to.
Built on Feedback. Refined for Performance.
The Razer Viper V4 Pro represents the next step in a mouse shaped by the competitive community. Every improvement is grounded in real feedback, real playtesting, and real performance demands.
Unlock your competitive edge and explore the winning Razer Viper V4 Pro and Razer Gigantus V2 Pro combo now.
