Cooler Master CK720 vs Cooler Master SK621
The Cooler Master CK720 and the Cooler Master SK621 are close alternatives. The main differences: the Cooler Master SK621 is the cheaper of the two at $89 versus $119; the Cooler Master CK720 is hot-swap while the Cooler Master SK621 is soldered; the Cooler Master SK621 runs wireless where the Cooler Master CK720 is wired-only.
- Lower priceCooler Master SK621$89 versus $119
- Easier to modCooler Master CK720hot-swap sockets
- More ways to connectCooler Master SK6212 connection modes versus 1
Choose the Cooler Master CK720 if
- you mainly want it for enthusiast.
- you mainly want it for gaming.
- you want to swap switches without soldering.
Choose the Cooler Master SK621 if
- you mainly want it for travel.
- you mainly want it for office.
- you mainly want it for mac users.
- you want to spend less ($89).
Cooler Master CK720 vs Cooler Master SK621, spec by spec
| Cooler Master CK720 | Cooler Master SK621 | |
|---|---|---|
| Layout | 65% | 60% |
| Height | Standard | Low profile |
| Connectivity | Wired | Wired, Bluetooth (stronger spec) |
| Hot-swap | Yes (stronger spec) | No |
| Keycaps | n/a | n/a |
| Case | n/a | aluminum top plate, plastic base |
| Mount | Gasket | Tray |
| Backlight | RGB | RGB |
| QMK / VIA | No | No |
| Battery | n/a | 2000 mAh |
| Typical price | $119 | $89 (stronger spec) |
| Sound (stock) | n/a | n/a |
| Released | 2023 | 2020 |
Highlighted rows are where the two differ; a check marks the objectively stronger spec (price, battery, modability). Feel and preference rows never get a check. Fields marked n/a are unpublished by the maker; we list only verifiable numbers.
Where they sit among all 509 boards we track
45% of the 509 boards tracked here cost less than the Cooler Master CK720; 22% of the 509 boards tracked here cost less than the Cooler Master SK621.
7% of the 172 wireless boards tracked here carry a smaller battery than the Cooler Master SK621.
Where to buy the Cooler Master CK720
No verified retailer link right now. Check the maker or your usual keyboard retailers.
Where to buy the Cooler Master SK621
No verified retailer link right now. Check the maker or your usual keyboard retailers.
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