Cooler Master MM731
Expert rating8 / 10
- Connectivity:
- Wireless
- Weight:
- 49g
- Max DPI:
- 19
- Polling Rate:
- 1000Hz
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Manufacturer: Cooler Master Last updated: 2026-09-12
Cooler Master MM731 (Wireless/Ambidextrous Symmetrical/49g/PAW3370 Sensor up to 19,000 DPI/1000Hz/70hr Battery/Optical Switches) Review
The MM731 is Cooler Master's ultralight honeycomb wireless mouse, coming in at just 49g with tri-mode connectivity and a PAW3370 sensor at a price well below most sub-50g competitors.
Cooler Master's MM line has quietly built a following among value-focused lightweight mouse buyers, and the MM731 is their sub-50g entry: a fully honeycombed shell, both 2.4GHz and Bluetooth connectivity, and PTFE skates, all at a price that undercuts the Finalmouse and Lamzu competition by a wide margin.
Who It's Built For
Budget-focused players chasing sub-50g wireless weight who don't need a boutique brand name.
Comparison to Alternatives
Against the Cooler Master MM712 already in this catalog, the MM731 is significantly lighter thanks to full honeycomb venting and drops a bit of shell rigidity in exchange. It undercuts the Finalmouse UltralightX and Glorious Model O 2 Pro on price while landing in a similar weight class.
Specifications
Identity
| Brand | Cooler Master |
|---|---|
| Model | MM731 |
Design
| Connectivity | Wireless (2.4GHz), Bluetooth |
|---|---|
| Grip Type | Ambidextrous |
| Shape | Symmetrical, honeycomb |
Performance
| Sensor Tier | High |
|---|---|
| Buttons | 6 |
| Polling Rate | 1000 Hz |
Weight and size
| Weight | 49 g |
|---|
| Sensor | PixArt PAW3370, up to 19,000 DPI |
|---|---|
| Switches | Optical |
| Battery | Up to 70 hours |
Expert Review
Reviewed by Burooj Alam. Rated by us, not by users.
Expert rating8 / 10
One of the best value-for-weight wireless mice available; it just lacks the sensor polish of pricier flagships.
Best for
- Budget shoppers chasing sub-50g wireless weight
- Ambidextrous claw and fingertip grip users
- Players who want Bluetooth as a backup connection
Not for
- Buyers who dislike honeycomb/vented shells
- Palm grip users wanting a fuller shell
- Anyone wanting 4000Hz+ polling
FAQs
What are the key specifications of the Cooler Master MM731 (Wireless/Ambidextrous Symmetrical/49g/PAW3370 Sensor up to 19,000 DPI/1000Hz/70hr Battery/Optical Switches)?
The Cooler Master MM731 (Wireless/Ambidextrous Symmetrical/49g/PAW3370 Sensor up to 19,000 DPI/1000Hz/70hr Battery/Optical Switches) is a gaming mouse from Cooler Master. Key specs: Connectivity Wireless (2.4GHz), Bluetooth, Grip Type Ambidextrous, Shape Symmetrical, honeycomb, Weight 49, Sensor Tier High.
Will the Cooler Master MM731 (Wireless/Ambidextrous Symmetrical/49g/PAW3370 Sensor up to 19,000 DPI/1000Hz/70hr Battery/Optical Switches) work with my current setup?
The Cooler Master MM731 (Wireless/Ambidextrous Symmetrical/49g/PAW3370 Sensor up to 19,000 DPI/1000Hz/70hr Battery/Optical Switches) lists Sensor is PixArt PAW3370, up to 19,000 DPI. Check that against the hardware you already own before buying, since this is the field that most often decides whether a part fits.
Who is the Cooler Master MM731 (Wireless/Ambidextrous Symmetrical/49g/PAW3370 Sensor up to 19,000 DPI/1000Hz/70hr Battery/Optical Switches) best suited to?
It suits budget shoppers chasing sub-50g wireless weight, ambidextrous claw and fingertip grip users, players who want bluetooth as a backup connection.
What are the drawbacks of the Cooler Master MM731 (Wireless/Ambidextrous Symmetrical/49g/PAW3370 Sensor up to 19,000 DPI/1000Hz/70hr Battery/Optical Switches)?
It is a poor fit for buyers who dislike honeycomb/vented shells, palm grip users wanting a fuller shell, anyone wanting 4000hz+ polling.
Compare and read more
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