Cooler Master
MM831
128.1 × 67.4 × 43.4 mm · 123 g
palm grip
18.1–21.8 cm
claw grip
19.6–23.5 cm
fingertip grip
21.2–25.5 cm
Hand lengths (wrist to middle fingertip) this mouse suits, by grip.
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Will the MM831 fit my hand?
- Will the Cooler Master MM831 fit small hands (about 17.2 cm long)?
- Probably not. It's on the large side for these hands.
- Will the Cooler Master MM831 fit medium hands (about 18.7 cm long)?
- It can work with a palm grip, but it isn't an ideal fit.
- Will the Cooler Master MM831 fit large hands (about 20.2 cm long)?
- It can work with a palm or claw grip, but it isn't an ideal fit.
| Grip | Hand length | Hand width |
|---|---|---|
| palm | 18.1–21.8 cm | 7.5–9.5 cm |
| claw | 19.6–23.5 cm | 8.1–10.3 cm |
| fingertip | 21.2–25.5 cm | 8.6–10.9 cm |
Specs
- Length
- 128.1 mm
- Width
- 67.4 mm
- Height
- 43.4 mm
- Weight
- 123 g
- Shape
- Ergonomic
- Hand
- Right only
- Connection
- Wireless
Fits like the MM831
The closest mice in length, width and height, so they should feel familiar in the same hand.
| Mouse | Length | Width | Height | Weight |
|---|---|---|---|---|
| EWEADN A5 | 127.9 -0.2 | 68 +0.6 | 43 -0.4 | 65 g |
| EWEADN A5 Pro | 127.9 -0.2 | 68 +0.6 | 43 -0.4 | 65 g |
| EWEADN A5 Ultra | 127.9 -0.2 | 68 +0.6 | 43 -0.4 | 65 g |
| EWEADN X21 | 127.9 -0.2 | 68 +0.6 | 43 -0.4 | 57 g |
| EWEADN X21 Pro | 127.9 -0.2 | 68 +0.6 | 43 -0.4 | 59 g |
| Attack Shark V8 | 127.7 -0.4 | 67.8 +0.4 | 42.8 -0.6 | 59 g |
Listed since 2026-10-24.