Razer has officially announced the Razer Basilisk V4 Pro, its latest premium ergonomic gaming mouse, featuring a redesigned button layout, an upgraded 50K DPI optical sensor, improved scrolling controls, and extensive RGB lighting. Alongside it, Razer has also introduced the Mouse Dock V2 Pro for convenient wireless charging and high-performance connectivity.
The Basilisk series has always been about offering plenty of customisation without sacrificing comfort. Unlike Razer’s Viper series, which focuses heavily on lightweight, competitive gaming performance, the Basilisk is designed for gamers who prefer an ergonomic shape, additional buttons, and more versatility.
I’ve reviewed several Basilisk mice over the years, including the Razer Basilisk V3 Pro 35K, and one of my favourite features has always been the scrolling wheel and its Smart-Reel functionality. With the Basilisk V4 Pro, Razer is taking that feature even further.
The Razer Basilisk V4 Pro retains the familiar ergonomic design and signature thumb rest that Basilisk users love. However, Razer has refined the button placement, including repositioning the multi-function trigger for easier access.
There is now a third side button and a new M1 edge button, bringing the total to 14 customisable controls. Through Razer Synapse, gamers can assign different functions, create macros, and use Razer Hypershift to access secondary commands. Game-specific profiles can also load automatically when launching supported games.
Interestingly, despite these additions, the new mouse is 12 grams lighter than its predecessor. That’s a great improvement, particularly for gamers who found the previous Basilisk models a little too heavy. There is also the new Razer HyperScroll Tilt Wheel Gen-2. It now offers two tactile scrolling options: the standard 24-step mode and a new 48-step Precision Tactile mode. The latter should be useful when cycling through weapons, abilities, or inventory items where more precise scrolling is required. I honestly never use scrolling to scroll through weapons but others might find it handy.
Free-Spin mode remains available for quickly scrolling through lengthy documents or web pages, while Smart-Reel automatically switches between tactile and free-spin scrolling depending on how quickly you move the wheel. Razer has also added Virtual Acceleration, allowing scrolling speed to increase dynamically with five adjustable acceleration levels.
Internally, the Basilisk V4 Pro receives a significant upgrade with the Razer Focus Pro 50K Optical Sensor Gen-3, offering up to 50,000 DPI, 930 IPS tracking speed, and 90G acceleration. It also supports Razer HyperSpeed Wireless Gen-2 with true 8,000Hz polling in both wireless and wired modes.
For comparison, the Razer Viper V4 Pro also focuses heavily on reducing latency and delivering highly responsive tracking. It’s interesting to see some of Razer’s latest performance technologies making their way into the more feature-packed Basilisk range.
The new Frame Sync technology coordinates sensor scanning with the mouse’s polling cycle, which Razer says helps reduce motion latency while improving battery efficiency. Other features include Asymmetric Cut-Off for independently adjusting lift-off and landing distances, Dynamic Sensitivity, Mouse Rotation, and Perfect 180, which allows low-sensitivity gamers to execute quick 180-degree turns.
Razer Optical Mouse Switches Gen-4 are also included, rated for 100 million clicks with 12% lighter actuation and no debounce delay.
The Basilisk V4 Pro features seven individually customisable Razer Chroma RGB lighting zones, including full underglow lighting that projects onto the desk. The lighting supports 16.8 million colours and can synchronise with compatible Razer peripherals and more than 50 partner products. Dynamic lighting effects are also supported in over 300 Chroma-integrated games.
Despite all that RGB lighting, Razer claims the Basilisk V4 Pro can deliver up to 200 hours of battery life using HyperSpeed Wireless Gen-2 at 1,000Hz, or up to 275 hours over Bluetooth 6.2. Actual battery life will naturally depend on the selected settings, including lighting and polling rate.
Connectivity is another strong point here too, with five connection options spanning HyperSpeed Wireless, Bluetooth pairing with up to three devices, and wired USB connectivity.
This makes it possible to switch between a gaming PC, work laptop, or another compatible device without constantly reconnecting the mouse. And that juicy smooth scrolling is awesome for work / web browsing, trust me.
Alongside the new mouse, Razer has unveiled the Razer Mouse Dock V2 Pro, a wireless charging dock that doubles as an 8,000Hz wireless transceiver. Rather than plugging a charging cable directly into the mouse, users can simply place the Basilisk V4 Pro onto the magnetic dock to recharge it. The dock also supports Razer HyperSpeed Multi-Device connectivity, allowing compatible Razer mice and keyboards to connect through the same receiver, reducing the number of USB connections required.
There is also eight-zone Chroma RGB underglow, a charging status indicator, and an anti-slip base to help keep the dock securely positioned on the desk. Razer also offers the HyperFlux V2 wireless charging system for those who prefer a different charging solution.
Not everyone needs all the features found on the Pro model, so Razer has also introduced the Razer Basilisk V4 HyperSpeed.
This more streamlined gaming mouse retains the ergonomic Basilisk design but comes with a different set of specifications. It weighs just 94 grams and features the Razer Focus X 33K Optical Sensor Gen-3, 12 customisable controls, and up to 140 hours of battery life.
More information is available on the official product pages for the Razer Basilisk V4 Pro, Razer Basilisk V4 HyperSpeed, and Razer Mouse Dock V2 Pro.
