ASUS's sleek new gaming mouse weighs less than an egg

If you're serious about gaming, you need to be serious about peripherals, and that includes a gaming mouse that balances a light weight and ergonomic design with speed and precision. Those are the primary goals of ASUS's new ROG Harpe II Ace, unveiled at Computex 2025 in Taipei, Taiwan this week alongside the ROG Falcata keyboard.

It's incredibly light

The first thing I noticed upon picking up this new mouse was its almost unnaturally light weight. At 48 grams, this device is 11% lighter than ASUS's previous Harpe Ace Aim Lab edition, and it feels like there's almost no heft to it. For some additional non-gaming-mouse context, that's around a quarter of the weight of your average smartphone, or equivalent to a typical set of wireless earbuds, or a single medium-sized US chicken egg. You get the idea: this thing is ridiculously slight, to the point where it's surprising this is a wireless mouse at all, let alone one packed with high-end precision parts.

The ASUS ROG Harpe II was developed with feedback from esports stars including Valorant pro Max "Demon1" Mazanov, and owes its impressive physical attributes to a unique "bio-based nylon" construction. The mouse's shape has also been obsessively engineered to ensure a solid hold with a variety of grip positions, with a taper that's designed to make it easier to lift.

High-end specs all around

And for those extra-intense play sessions, ASUS has employed a matte textured finish to counter sweat and finger grease, avoiding slippage during gameplay. That's complemented by PTFE mouse feet to aid smooth motion.

Despite its impressively light weight, this is indeed a wireless gaming mouse, and as such boasts ASUS's ROG SpeedNova 8K tech, giving it an 8000Hz polling rate. That's paired with an ROG AimPoint Pro optical sensor featuring 42,000-dpi resolution and on-glass tracking capabilities.

It's tough to get an accurate picture of how a mouse will stand up to extended gameplay in our brief demo session at Computex, but I was impressed by the ROG Harpe II Ace's light weight and hand feel. What's more, the mouse looked sharp in both the black and white colorways shown at our preview event. Clicks felt sharp and precise across all five buttons, and the side buttons in particular felt sturdier than many mice I've used over the years, including gaming models.

We'll need to wait and see how this mouse holds up to the test of time, however, especially when it comes to ASUS's claims around impact resistance and the new Harpe's quoted 100-million click lifespan.

ASUS hasn't announced pricing details for the ROG Harpe II Ace just yet, but we should know more imminently as its early June release date approaches.