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The ASUS ROG Keris II Ace is a strong fit for FPS players who want a very light, right-handed mouse with wired, 2.4 GHz wireless, and Bluetooth connectivity. ASUS lists it at 54 grams, and RTINGS’ review describes it as well built and responsive, with very low click latency and strong sensor performance. Its main compromises are fewer side buttons than a dedicated MMO mouse and a scroll wheel without free scrolling or tilt inputs.
What is the Keris II Ace, and who is it for?
The Keris II Ace is a right-handed gaming mouse designed around a lightweight build and a shape that RTINGS says can suit a range of grip styles and hand sizes. In its comparisons, RTINGS characterizes it as somewhat smaller than the Razer DeathAdder V3 Pro and Pulsar Xlite V3, making it a more natural consideration for medium-sized hands than those larger options. Shape is personal, so hand size and how you hold a mouse matter more than the weight figure alone.
ASUS says the shell uses bio-based nylon derived from castor oil. Its January 12, 2024 announcement calls the mouse an ultralight option for competitive gamers and esports athletes; that is the manufacturer’s product description, not an independent performance finding. ASUS Republic of Gamers product announcement
How does it perform for gaming?
RTINGS’ review, published June 19, 2024 and carrying a test-bench update dated March 10, 2026, describes the Keris II Ace as particularly strong for FPS gaming. It reports very low click latency and strong overall sensor performance, alongside responsive operation and solid build quality. RTINGS does not establish a numeric performance result in the accessible review summary, so those findings should not be read as a particular measured latency or a guarantee of an advantage in every game.
#1 Best Overall
- Pro-Tested 54g Ultralight, Ergo Design: Ergonomic lightweight gaming mouse co-developed with professional esports FPS players for peak comfort, control, and speed during long gaming sessions
- Tri-Mode Connectivity with ROG SpeedNova Wireless: Connect via low-latency 2.4 GHz RF, Bluetooth, or USB-C wired mode. Compatible with the ROG Omni Receiver for seamless multi-device pairing
- ROG AimPoint Pro 42K Sensor: Industry-leading 42,000 DPI optical sensor with <1% CPI deviation and track-on-glass capability for precision on nearly any surface
- ROG Optical Micro Switches: Reliable switches rated for 100 million clicks, offering consistent, instant actuation and eliminating double-click issues for competitive play
- Premium Components & Onboard Control: Features lightweight ROG Paracord, 100% PTFE mouse feet for smooth glides, and onboard settings control for sensitivity, polling rate, and lighting
ASUS specifies a 42,000-dpi ROG AimPoint Pro optical sensor, says it tracks on glass, and describes sensor deviation as 1%. These are manufacturer specifications and claims, rather than independent test results. ASUS also rates the optical micro switches for a 100-million-click lifespan. ASUS Republic of Gamers product announcement
What connections and polling rates does it support?
The mouse supports USB wired use, 2.4 GHz wireless, and Bluetooth pairing with up to three devices, according to ASUS. Polling rate depends on how it is connected and on an accessory:
Rank #2
- CARBON FIBER STRUCTURE - Precision engineered carbon fiber shell that keeps weight down to a minimum
- PRO-TESTED, 47-GRAM DESIGN - Mouse shape co-developed with esports professionals to ensure stability and control when flicking and tracking
- ROG POLLING RATE BOOSTER - Up to a true 8000 Hz wireless polling rate for increased wireless responsiveness
- ROG AIMPOINT PRO OPTICAL SENSOR - 42,000 dpi for precision accuracy and track-on-glass technology
- ROG OPTICAL MICRO SWITCHES - Crisp and instant actuation with a 100-million-click lifespan
| Connection | Maximum polling rate | Requirement |
|---|---|---|
| USB wired | Up to 8,000 Hz | Optional ROG Polling Rate Booster |
| 2.4 GHz wireless | Up to 4,000 Hz | Optional ROG Polling Rate Booster |
| Bluetooth | Not stated in the cited ASUS announcement or RTINGS summary | Bluetooth pairing is supported; a maximum polling rate is not established by those sources |
RTINGS reports the same 8,000 Hz wired and 4,000 Hz wireless ceilings. Do not assume the ROG Polling Rate Booster comes in the box: ASUS describes it as a separate compatible accessory. Check the specific regional listing and package contents before buying if high polling rates are a requirement. ASUS Republic of Gamers product announcement · RTINGS review
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Fewer controls for MMO play
The Keris II Ace can work for MMO gaming, according to RTINGS, but its side-button count is lower than that of dedicated MMO mice. If you regularly bind many abilities to your mouse, compare the physical button layout with your existing setup before choosing it.
Rank #3
- Built for Esports Gamers: Co-developed with professional FPS players. Its semi-symmetrical form factor is optimal for claw grip types, making it the perfect wireless mouse for competitive gaming on desktop or laptop setups
- Aim Labs Setting Optimizer: Synergistic software analyzes user strengths, habits, and play styles to tailor mouse settings for optimal gameplay by suggesting - Mouse DPI, Angle Tuning, and Lift-off Distance
- Professional-Grade Precision: The 36,000-dpi ROG AimPoint optical sensor features an industry-leading < 1% cpi deviation, enabling ultimate speed and accuracy in competitive gaming and precise work
- NVIDIAReflex: Officially verified for NVIDIA Reflex Latency Analyzer to monitor mouse responsiveness
- Tri-Mode & Multiple Device Connectivity: Enjoy unmatched flexibility with wired USB (Type-C to Type-A), low-latency 2.4 GHz RF, and Bluetooth pairing for up to three devices. In 2.4 GHz RF mode, the ROG Omni Receiver links multiple supported devices through a single receiver, with ROG SpeedNova wireless technology ensuring ultra-low latency, reliable performance, and optimized power efficiency
A basic scroll wheel for productivity
RTINGS notes that the wheel does not offer free scrolling or left/right tilt inputs. Those omissions matter more for spreadsheet work, document navigation, or workflows that rely on horizontal scrolling than for straightforward gaming use.
Some Mac functions may need Windows setup
RTINGS notes that some functions may require configuration on a Windows machine before use on Mac. The cited review summary does not identify every affected function, so Mac users who depend on advanced customization should confirm the setup requirements for their intended controls.
Rank #4
- Built for Esports Gamers: Co-developed with professional FPS players. Its semi-symmetrical form factor is optimal for claw grip types, making it the perfect wireless mouse for competitive gaming on desktop or laptop setups
- Aim Labs Setting Optimizer: Synergistic software analyzes user strengths, habits, and play styles to tailor mouse settings for optimal gameplay by suggesting - Mouse DPI, Angle Tuning, and Lift-off Distance
- Professional-Grade Precision: The 36,000-dpi ROG AimPoint optical sensor features an industry-leading < 1% cpi deviation, enabling ultimate speed and accuracy in competitive gaming and precise work
- NVIDIAReflex: Officially verified for NVIDIA Reflex Latency Analyzer to monitor mouse responsiveness
- Tri-Mode & Multiple Device Connectivity: Enjoy unmatched flexibility with wired USB (Type-C to Type-A), low-latency 2.4 GHz RF, and Bluetooth pairing for up to three devices. In 2.4 GHz RF mode, the ROG Omni Receiver links multiple supported devices through a single receiver, with ROG SpeedNova wireless technology ensuring ultra-low latency, reliable performance, and optimized power efficiency
How should you compare it with other lightweight gaming mice?
Start with shape and hand fit, then compare the features that affect your games and setup. RTINGS’ comparisons include the Razer DeathAdder V3 Pro, Razer Viper V3 Pro, ASUS ROG Harpe Ace Aim Lab Edition, and Pulsar Xlite V3. In those specific comparisons, the DeathAdder V3 Pro is slightly larger, while the Viper V3 Pro is symmetrical and supports up to 8,000 Hz wirelessly; the Keris II Ace is right-handed and reaches its 8,000 Hz maximum in wired mode. These are comparison points from RTINGS’ review, not universal rankings.
- Shape and hand size: Consider the Keris II Ace if you want a right-handed shape; compare dimensions and grip comfort against larger or symmetrical alternatives.
- Weight: ASUS specifies 54 grams for the Keris II Ace. Compare the stated weight of each candidate, while accounting for differences in shape and use.
- Polling rate and receiver: Check the maximum rate for the connection you will actually use and whether the required receiver or booster is included.
- Controls: Count side buttons and consider whether you need wheel tilt or free scrolling.
- Software and operating system: Verify that the mouse’s configurable features can be set up for your computer, especially if you use Mac.
RTINGS ASUS ROG Keris II Ace review and comparisons
Is the ASUS ROG Keris II Ace worth buying?
It is worth considering if your priority is a lightweight, right-handed mouse for FPS play and you value the choice of wired, 2.4 GHz, and Bluetooth connections. The independent review findings support its gaming strengths, while the manufacturer’s specifications establish its sensor, switch rating, and connection options. It is a less obvious match if you need many thumb buttons, a feature-rich scroll wheel, or wireless 8,000 Hz polling: the latter is not the stated wireless maximum, even with the optional booster.
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