Corsair Nightsword v2 Wireless is a gaming mouse with a dedicated Stream Deck button

Corsair announced the Nightsword v2 Wireless at Computex 2026 — a gaming mouse built around a dedicated Stream Deck button. It's priced at $130 and immediately raises a practical question: useful shortcut or accidental misclick waiting to happen?

The specs are solid enough: a 33K DPI sensor, 8,000 Hz polling rate in both wired and wireless modes, and an 89 g weight that's a touch on the heavy side by modern standards. The Stream Deck button doesn't work like a standard Stream Deck key — it doesn't open a specific app or tab directly. Instead, it pulls up a small digital panel on your monitor with a handful of pre-assigned controls to choose from. Corsair's example shows an Arc Raiders player using it to access their backpack and map in-game. The button sits just below the two left side buttons on the mouse, which is exactly where accidental presses seem most likely.

Corsair has been pushing Stream Deck integration across its hardware lineup for a while — earlier this year the Corsair Galleon 100 SD shipped with a built-in Stream Deck display. The Nightsword v2 continues that push. Corsair also announced two other products alongside the mouse: the Clipper Pro Mini, a 60% keyboard with Hall effect switches, rapid trigger, and 8,000 Hz polling for $100, and the HS35 v3, a wireless headset with 50 mm neodymium drivers and 30-hour battery life for $80.

Whether the Stream Deck button earns its place depends entirely on how well it's positioned in real use. If your keyboard binds are already maxed out, having extra controls on your mouse makes sense — but if the button is too easy to clip by accident, it'll be more annoyance than feature. The keyboard and headset both look reasonably priced, which is a pleasant surprise from Corsair at Computex this year.