Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Corsair - K70 MAX | Keychron - K2 Max |
|---|---|---|
| Polling rate | 8000 Hz | 1000 Hz |
| Rotary knob | true | false |
| Hot-swappable | false | true |
| Size | Full | 75% |
| Wireless | false | true |
Between the K70 MAX and K2 Max, the K70 MAX comes out ahead in polling rate / rotary knob, while the K2 Max wins on hot-swappable / wireless. Overall, the K70 MAX scores 73.9 and the K2 Max scores 64.5 on our Mars Score.
Which should you buy?
The K70 MAX is the clear pick on raw spec strength, leading by 9.4 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.
Pick the K70 MAX if you care most about polling rate / rotary knob. The biggest gaps in its favor are polling rate, rotary knob, size. The single most decisive one: Polling rate — 700.00% more. 8000 Hz vs 1000 Hz.
Pick the K2 Max if you care most about hot-swappable / wireless. Its strongest claims are hot-swappable, wireless. The single most decisive one: Has Hot-swappable.
There are no meaningful ties on the headline specs — every popular-comparison metric has a winner.
Bottom line: the K70 MAX is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Which should you buy: Corsair - K70 MAX or Keychron - K2 Max?
Corsair - K70 MAX leads the current Mars Score by 9.4 points.The more useful decision is the trade-off behind that result: compare size, wireless, hot-swappable against the way you will actually use the product.
Choose Corsair - K70 MAX if…
Corsair - K70 MAX has the measurable edge on polling rate hz, has knob, size.
Choose Keychron - K2 Max if…
Keychron - K2 Max has the measurable edge on is hot swap, is wireless.
This is a structured comparison of the published catalog values. It is not a claim of identical real-world performance across every workload; use the linked spec drill-downs and methodology page to inspect the inputs.
Why Corsair - K70 MAX wins
- ▲Polling rate — 700.00% more. 8000 Hz vs 1000 Hz.
- ▲Has Rotary knob.
- ▲Size: Full (vs 75%).
Why Keychron - K2 Max wins
- ▲Has Hot-swappable.
- ▲Wireless: true (vs false).
Spec comparison
Switches
| Spec | Corsair - K70 MAX | Keychron - K2 Max |
|---|---|---|
| Switch type | MGX Magnetic | Gateron G Pro |
| Hot-swappable | false | truelead |
Layout & Build
| Spec | Corsair - K70 MAX | Keychron - K2 Max |
|---|---|---|
| Size | Fulllead | 75% |
| RGB | true | true |
| Rotary knob | truelead | false |
| Case material | Aluminum | Plastic |
Connectivity
| Spec | Corsair - K70 MAX | Keychron - K2 Max |
|---|---|---|
| Wireless | false | truelead |
| 2.4 GHz | false | truelead |
| Battery | 0 h | 100 hlead |
| Polling rate | 8000 Hzlead | 1000 Hz |