ASUS ROG Keris II Ace: problems, parts and running costs

Checked: 2026-10-20

Summary

The Keris II Ace is a 54 g right-handed wireless mouse whose trouble starts above 6,400 Hz polling: owners on ASUS’s own forum report sensor acceleration and jitter, random 8 KHz wireless disconnects that only a power-cycle clears, an 8,000 Hz option that sometimes never appears in the menu, and Armoury Crate surface calibration that barely tracks. Running costs are electricity only, because the battery is internal and not user-replaceable, spare PTFE feet and grip tape come in the box and there is no subscription. It is a strong buy at the $109.99 ASUS US Store price and a weak one at the $159.99 list price.

Common problems and fixes

Sensor acceleration and jitter above 6,400 Hz — an owner on the ROG forum reports that until firmware 3.00.17 the sensor was “a complete mess”, with acceleration and jitter on small movements at polling rates above 6,400; the newer firmware improves it a lot. Fix: update the mouse firmware before using high polling rates. [14]
Random disconnects at 8 KHz wireless — the same owner reports the Keris II Ace and the Harpe Ace Mini randomly stopping after 3-4 minutes at 8 KHz wireless and only recovering after a power-cycle. Fix: run 4,000 Hz wireless or use the 8,000 Hz wired mode with the booster. [14]
8,000 Hz never appears in the polling menu — another owner could not get 8 K polling to show as a choice after updating both mouse and booster firmware. Fix: update the mouse and the booster firmware before you rely on the 8,000 Hz headline; no further remedy is reported. [14]
Armoury Crate surface calibration is unusable — one owner calls calibration with a ROG mousepad “extremely sketchy and completely unusable”, with the mouse barely tracking. Workaround: set DPI, polling rate and lift-off distance from the onboard memory instead, which works without the software. [14]
Clicks are louder than expected — RTINGS commenters describe the optical switches as much louder than a Logitech G Pro Wireless, and one owner considered returning the mouse over the noise. Fix: there is none; the loudness comes from the optical switch design. [5]
8,000 Hz polling needs a wired connection and the booster — PCMag lists it as a con. Wireless tops out at 4,000 Hz, and by default the mouse is a USB full-speed 1,000 Hz device, with the booster required for report rates above 2,000 Hz. [9][2][6]
Battery percentage reads optimistic — TechPowerUp’s battery test found the indicator consistent but optimistic, and estimated at least 100 hours at 1,000 Hz and at least 30 hours at 4,000 Hz as reasonable guesses; IGN measured about 40 hours of use across five days on one charge. Fix: charge on a schedule rather than trusting the indicator. [8][11][12]

Parts and consumables

ROG Polling Rate Booster (included) — bundled with the Ace and required for report rates above 2,000 Hz, so no extra purchase is needed to reach 8,000 Hz wired or 4,000 Hz wireless; ASUS also excludes the booster from warranty coverage. The heavier ROG Keris II Origin is the version where the booster is sold on its own, for S$39. [1][2][6][15]

Yearly running cost

Electricity is the only running cost. The battery is internal and not user-replaceable, the box already includes spare PTFE feet and a grip tape set, and there is no subscription or consumable lock-in. ASUS rates 107 hours on 2.4 GHz with lighting off (67 hours with default lighting on) and 134 hours on Bluetooth with lighting off (89 hours with default lighting on); TechPowerUp estimates at least 100 hours at 1,000 Hz and at least 30 hours at 4,000 Hz, and IGN measured about 40 hours of use across five days on one charge. The charge power and electricity rate are not listed, so the yearly total cannot be computed. Yearly total: Not enough data.

When it is a good buy

At $109.99 at the ASUS US Store against a $159.99 reference (October 2026) the Keris II Ace is a strong value: 54 g, a 42,000 DPI AimPoint Pro sensor, the booster in the box, 4,000 Hz wireless, 8,000 Hz wired, track-on-glass and PTFE feet. Newegg listed both the black and Moonlight White versions at $159.99, and third-party storefronts sit around $106-115, so anything near $159.99 is the weaker deal. At $159.99 you pay for the shape, weight and sensor rather than a flawless 8,000 Hz experience, and PCMag calls it expensive.

The ROG Keris II Origin is the better choice if you want the same sensor in a heavier 65 g body with a different switch design, or if you do not want the booster bundle. The older ROG Keris Wireless is the better choice if you want hot-swappable switch sockets, which the Keris II Ace does not have, and it costs roughly half as much according to one owner. If you never run above 2,000 Hz, any wireless mouse that charges over USB and needs no booster dongle is the better choice.