The most annoying thing about having a Stream Deck on your desk is that it sits over there, away from your mouse hand, waiting for you to break your focus and reach for it. Corsair just announced a fix for that at Computex 2026.
The Nightsword v2 Wireless SD is a right-handed wireless gaming mouse with a dedicated Stream Deck Launch Button built directly into the shell. Because Corsair owns Elgato, this is a fully native integration, not a workaround. The mouse shows up inside the Stream Deck app, and from there you can assign any action in your library directly to the mouse buttons.
Stream Deck button on the mouse
Get up to 80% off games only on GAMES.GG
Exclusive Discounts on Games
What the Stream Deck button actually does
Here's the thing: the integration goes deeper than just launching the app. Pressing the dedicated Launch Button opens a Virtual Stream Deck overlay, so you can navigate profiles and trigger actions without glancing away from your monitor. Standard button remapping in iCUE is still there, but the Stream Deck layer sits on top of it, giving you access to Discord mute toggles, audio level adjustments, scene switches, app shortcuts, and any multi-step macro you've already built.
The Elgato Marketplace plugin library extends that further. Any plugin that works on a physical Stream Deck also works here, which means app-specific profiles for tools like OBS, Spotify, or your game launcher of choice are all on the table.
For streamers and content creators who already live inside the Stream Deck ecosystem, this removes a physical device from the desk entirely. For pure gamers, it turns those side thumb buttons into something more useful than a secondary fire bind.
The Nightsword v2 Wireless SD is detected natively inside the Stream Deck app. No additional drivers or third-party software are required beyond what Stream Deck users already run.
The gaming hardware underneath
Corsair didn't sacrifice the spec sheet to fit the integration in. The Nightsword v2 Wireless SD uses the Marksman S optical sensor, covering a DPI range of 100 to 33,000 in 1-DPI increments. The optical main switches are rated for up to 100 million clicks, and the mouse supports polling rates up to 8,000Hz.
The body is right-handed ergonomic with a sculpted thumb rest, 11 programmable buttons, and three-zone RGB lighting. At 89g, it sits in a reasonable range for a wireless mouse with this feature set.
Connectivity covers 2.4GHz wireless, Bluetooth 5.2 with LE, and wired USB. Battery life is rated at up to 170 hours over 2.4GHz at 1,000Hz polling with RGB off, dropping to 47 hours at 8,000Hz. With lighting enabled, expect up to 42 hours at 1,000Hz or around 25.5 hours at the top polling rate. Bluetooth stretches to 164 hours without backlighting.
11-button layout, 89g body
Pricing and what comes next
The Nightsword v2 Wireless SD is priced at $129.99 and is available now through Corsair's official website. That puts it in the premium tier for gaming mice, though the Stream Deck integration does effectively bundle two products into one for players who were already considering both.
What most players miss is that this kind of hardware convergence tends to move faster once one manufacturer proves the concept. Corsair has the advantage of owning both brands, so the pipeline between iCUE and Stream Deck is tighter than anything a third party could replicate. Whether competitors respond with their own macro-layer integrations or the format stays proprietary to Corsair's ecosystem will be worth watching over the next product cycle.
For a closer look at how peripheral hardware is evolving alongside the games that push it, our gaming guides break down what actually matters for your setup. And if you want to see how recent gaming hardware holds up in practice, the latest reviews cover the full picture.
