Corsair Nightsword V2 Wireless SD Puts Stream Deck on Your Mouse
The new Nightsword V2 Wireless SD is the first gaming mouse with a dedicated Stream Deck Launch Button, bringing Elgato's virtual overlay to your screen with a single press. It also packs 8000 Hz hyper-polling and up to 170 hours of battery life.
One Button, A Whole Control Platform
Corsair has been quietly threading Elgato’s Stream Deck technology into its peripheral lineup for a while now, starting with keyboards and the SCIMITAR ELITE Wireless SE. The Nightsword V2 Wireless SD, announced today and available immediately, takes that experiment one step further. It is the first gaming mouse to include a physical Stream Deck Launch Button, a dedicated key that calls up Elgato’s Virtual Stream Deck overlay on your monitor with a single press.
The idea is straightforward: instead of glancing over at a separate Stream Deck device or tabbing out of your game, you hit the button on the mouse and a fully customizable shortcut panel appears on screen. From there, you can manage inventory, chain ability combos, trigger OBS scenes, mute Discord, or do whatever else you have mapped. According to Corsair, the eight programmable buttons on the mouse are all accessible within the Stream Deck app and connect directly to the Elgato Marketplace ecosystem, where users can download plugins for apps like OBS and Discord or pull down pre-built community profiles.
At launch, the Elgato Marketplace includes game profiles for Cyberpunk 2077, Pragmata, Resident Evil Requiem, ARC Raiders, Diablo IV, and Genshin Impact. More are planned. Users can also build and share their own, which should keep the library growing.
“One button on the mouse unlocks a control platform that adapts to whatever you’re playing or creating,” said Tobias Brinkmann, SVP and GM of Gaming at Corsair, in the company’s announcement. He framed the integration as a continuation of work that began with Corsair’s keyboard line, with the Nightsword V2 representing the next iteration rather than an isolated experiment.
Competitive Specs That Do Not Apologize
Corsair is clearly pitching this as a mouse for both competitive players and streamers, and the hardware spec sheet reflects that dual ambition. The Nightsword V2 Wireless SD supports up to 8000 Hz hyper-polling in both wired and wireless modes. That number carries a caveat: reaching 8000 Hz depends on your CPU specifications. But for systems that can handle it, Corsair describes that polling rate as up to 8x faster than the standard 1,000 Hz.
The mouse runs on the Corsair MARKSMAN S sensor, which is rated for up to 33,000 DPI tracking, 99.7% resolution accuracy, 750 IPS speed, and 50G acceleration. Optical switches rated for 100 million clicks handle actuation with zero debounce delay. An included wireless adapter is designed to be placed close to the mouse, shortening the transmission path for a more consistent signal.
The right-handed ergonomic shell includes contoured curves and a thumb rest, built for extended sessions whether you are deep into a raid or halfway through a six-hour stream.
Battery Life and Setup
Corsair rates the Nightsword V2 at up to 170 hours of battery life via 2.4 GHz wireless with RGB off at 1 kHz polling. Bluetooth mode brings that figure to up to 164 hours under the same conditions. The mouse also supports wired USB-C for those who prefer that option or need a quick charge.
Customization lives in Corsair Web Hub, a browser-based tool that handles button mapping, macros, DPI adjustment, and Motion Sync settings without requiring any additional software installation. That is a meaningful quality-of-life call for users who want flexibility without bloat.
Pricing and Availability
The Nightsword V2 Wireless SD is available now through the Corsair webstore and Corsair’s worldwide network of authorized retailers and distributors. It comes backed by a two-year warranty and Corsair’s customer support network.
The device sits at an interesting crossroads for Corsair, asking players to think about their mouse as something closer to a command hub than a pointing device. Whether that pitch lands will depend on how deep users actually want to go with Stream Deck integration from their right hand. For the streamer-competitor crossover crowd, though, the argument for not needing a separate control surface on the desk is a genuinely practical one.
What makes the Corsair Nightsword V2 Wireless SD different from a standard gaming mouse?
It is the first gaming mouse to include a dedicated Stream Deck Launch Button, which summons a customizable Elgato Virtual Stream Deck overlay directly on screen with a single press, without requiring users to reach for a separate device.
What polling rate does the Nightsword V2 Wireless SD support?
The mouse supports up to 8000 Hz hyper-polling in both wired and wireless modes, which Corsair describes as up to 8x faster than standard 1,000 Hz polling. Achieving 8000 Hz is dependent on CPU specifications.
How long does the Nightsword V2 Wireless SD battery last?
Corsair rates it at up to 170 hours via 2.4 GHz wireless with RGB off and polling at 1 kHz, and up to 164 hours via Bluetooth under the same conditions.
What game profiles are available at launch on the Elgato Marketplace?
Pre-built profiles are available for Cyberpunk 2077, Pragmata, Resident Evil Requiem, ARC Raiders, Diablo IV, and Genshin Impact, with more profiles planned over time. Users can also build and share their own.