Skip to content
ASUS ROG Keris II Ace 54g ultralight wireless gaming mouse

ASUS ROG Keris II Ace 54g ultralight wireless gaming mouse

By ASUS · Computer Mice · Desk & Streaming Setup · More from ASUS

  • 54 g weight without cable or dongle
  • USB report rate up to 8,000 Hz with the ROG Polling Rate Booster
  • ROG 100M optical micro switches, 100% PTFE feet and 2 m ROG Paracord cable

Price not listed

New
Used, refurbished, open-box

Stores are listed in a fixed order, never by price or commission. Prices are snapshots. Check the current price with the store.

Problems, parts and running costs

Summary

The Keris II Ace is a 54 g right-handed wireless gaming mouse with a 42,000 DPI sensor and a bundled polling-rate booster that takes it to 8,000 Hz wired and 4,000 Hz wireless. It wins Editors’ Choice from PCMag and PCWorld, but check the high-polling firmware history and the $159.99 list price before you buy.

Strengths

  • 54 g body built from a castor-oil-derived bio-nylon shell, with no honeycomb holes and 100% PTFE feet.
  • 42,000 DPI AimPoint Pro sensor tracks on glass and claims under 1% deviation.
  • Bundled ROG Polling Rate Booster lifts the mouse from 1,000 Hz to 8,000 Hz wired and 4,000 Hz wireless.
  • Editors’ Choice awards from PCMag and PCWorld, with RTINGS calling it superb for FPS gaming.
  • Battery life is long: 107 hours on 2.4 GHz with lighting off and 134 hours on Bluetooth.

Weaknesses

  • At $159.99 it is expensive; PCMag lists price, the lack of a left-handed version and wired-only 8,000 Hz polling as cons.
  • Owners on ASUS’s own ROG forum report sensor jitter, acceleration and random disconnects at polling rates above 6,400 Hz.
  • One owner could not get 8,000 Hz to appear as a selectable option after updating the mouse and booster firmware.
  • Surface calibration in Armoury Crate was reported as unusable with a ROG mousepad.
  • Clicks are loud; RTINGS commenters and one owner said so.
  • Right-handed only, and both the wireless dongle and the polling-rate booster dongle are large.

Verified specifications

ModelROG Keris II Ace, a right-handed ultralight wireless gaming mouse sold in black and Moonlight White.
SensorROG AimPoint Pro, 100–42,000 DPI, 750 IPS max speed, 50 G max acceleration, track-on-glass.
Pollingup to 8,000 Hz wired and 4,000 Hz wireless with the bundled ROG Polling Rate Booster; default is a 1,000 Hz USB full-speed device.
SwitchesROG 100M Optical Micro Switch, 100-million-click rated; main buttons are PBT.
Buttons5+1 including wheel click (PCWorld counts six programmable).
WheelTTC Gold, 14 mm encoder.
MCUNordic nRF52840.
ConnectivityUSB 2.0 (Type-C to Type-A), Bluetooth 5.1, RF 2.4 GHz.
Battery2.4 GHz up to 107 hours without lighting and 67 hours with default lighting; Bluetooth up to 134 hours without lighting and 89 hours with default lighting.
Weight54 g without cable or dongle.
Dimensions4.76 × 2.64 × 1.65 in (121 × 67 × 42 mm).
Cable2 m ROG Paracord.
Lightingscroll-wheel RGB with AURA Sync.
SoftwareArmoury Crate and the peripheral-only Armoury Crate Gear; onboard memory handles DPI, polling rate, lift-off distance and hardware reset without software.
OSWindows 10 / Windows 11.
Warrantytwo years per TechPowerUp; grip tape, mouse feet and the polling-rate booster are excluded from warranty coverage.
In the boxmouse, ROG Polling Rate Booster, wireless receiver, USB dongle extender, grip tape set, two spare mouse feet, 2 m ROG Paracord, warranty booklet, Quick Start Guide, ROG sticker and a thank-you card.
Full research notes and sources

Performance and sensor

RTINGS calls the Keris II Ace superb for FPS gaming and rates raw performance outstanding, citing very low click latency and remarkably consistent motion. The sensor and the low click latency are the reason to buy this mouse.

Battery life and wireless modes

ASUS rates the mouse at 107 hours on 2.4 GHz with lighting off and 67 hours with default lighting on, and 134 hours on Bluetooth with lighting off and 89 hours with default lighting on. TechPowerUp’s battery test found the percentage indicator consistent but optimistic, and called at least 100 hours at 1,000 Hz and at least 30 hours at 4,000 Hz reasonable guesses. IGN measured about 40 hours of use across five days on one charge. By default the mouse is a USB full-speed device limited to 1,000 Hz; the booster is required above 2,000 Hz.

High polling rates and firmware

The 8,000 Hz headline needs a wired connection and the bundled ROG Polling Rate Booster, and wireless tops out at 4,000 Hz. ASUS’s own ROG forum shows a recurring pattern of problems at the highest rates. One owner reported that until firmware 3.00.17 the sensor was “a complete mess” with acceleration and jitter above 6,400 Hz, and the latest firmware improves it a lot. Another owner reported the mouse and the Harpe Ace Mini randomly stopping after 3–4 minutes at 8 KHz wireless until power-cycled. A third could not get 8 K polling to appear as a choice after updating mouse and booster firmware. Treat the 8 K headline with caution until you update the firmware.

Shape, size and comfort

TechPowerUp describes a shape that closely follows the Zowie EC archetype with a widened front and a raised left side, suited to palm and claw grip and a better fit for medium-to-large hands. igorsLAB measured the length including overhang at 12.11 cm and the base length at 11.3 cm. One owner with 20 x 10 cm hands found the shape great for relaxed claw grip, weighing about 54 g on their scale and praising the light-to-medium click feel. The mouse is right-handed only.

Parts, running costs and warranty

Spare PTFE feet and grip tape are included, and the polling-rate booster is bundled, so there is no separate purchase required for high polling and no subscription. The battery is internal and not documented as user-replaceable. ASUS states that grip tape, mouse feet and the ROG Polling Rate Booster are not covered by warranty; TechPowerUp states a two-year warranty. Repairability is limited: the Keris II Ace uses fixed optical switches, unlike the older ROG Keris Wireless’s hot-swappable switch sockets.

Is it worth it?

At the $109.99 US Store price the Keris II Ace is a strong value: 54 g, a 42,000 DPI sensor, a bundled polling-rate booster, 4,000 Hz wireless, 8,000 Hz wired, track-on-glass and PTFE feet. At the $159.99 list price it is a weaker value for most buyers; PCMag calls it expensive, and the high-polling firmware history weighs more heavily at full price. Newegg lists both the black and Moonlight White versions at $159.99. If you buy at the higher price, you are paying for the shape, weight and sensor rather than a flawless 8,000 Hz experience.

Which model this is

This page covers the ASUS ROG Keris II Ace, a 54 g right-handed ultralight wireless gaming mouse sold in black and Moonlight White. It succeeds the ROG Keris Wireless and is a separate product from the ROG Keris II Origin, a heavier 65 g sibling that shares the sensor but uses a different switch design. The research did not confirm an Amazon ASIN for this exact model, so none is linked here.

Sources

Manufacturer:

Independent reviews:

Owner reports:

Stores:

Buying guides for this category

Compare with

Related products