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Cloud Nine

C989M

The Cloud Nine C989M is a feature-rich ergonomic split mechanical keyboard best for users wanting customization and comfort, but its size, wired-only design, and Windows-centric software may deter some.

Summed up from 6 published reviews

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Cloud Nine C989M

What reviewers like

  • Ergonomic split design reduces wrist and shoulder strain 2345
  • Mechanical switches with tactile or linear options 1234
  • Customizable RGB lighting with per-key effects 12
  • Macro programming via hardware and software 124
  • Anti-ghosting and N-key rollover for gaming 14

What they don't

  • Large footprint unwieldy for small desks 23
  • Wired only with no wireless option 13
  • Software Windows-only with clunky manual updates 14
  • Premium price higher than budget alternatives 1345

Best for

Ergonomic mechanical split keyboard for gaming and typing comfort

Skip it if

Need wireless, compact size, or macOS software parity

Where it fits

use
Typing & codeOffice work
size
Split
feel
Bumpy
connection
Wired

Specs

Size
Split
Switches
Tactile
Best for
Office, Typing
Wireless
No
Hot-swap
No
Backlight
RGB

Also worth a look

Questions

Is the Cloud Nine C989M worth it?

The Cloud Nine C989M is a feature-rich ergonomic split mechanical keyboard best for users wanting customization and comfort, but its size, wired-only design, and Windows-centric software may deter some.

What do reviewers like about the Cloud Nine C989M?

Ergonomic split design reduces wrist and shoulder strain. Mechanical switches with tactile or linear options. Customizable RGB lighting with per-key effects. Macro programming via hardware and software. Anti-ghosting and N-key rollover for gaming.

What are the downsides of the Cloud Nine C989M?

Large footprint unwieldy for small desks. Wired only with no wireless option. Software Windows-only with clunky manual updates. Premium price higher than budget alternatives.

Who should buy the Cloud Nine C989M?

Ergonomic mechanical split keyboard for gaming and typing comfort. Skip it if need wireless, compact size, or macOS software parity.

Sources

We don't test products ourselves. This page sums up 6 published reviews, read on October 23, 2026; each point above links to the reviews that make it.

  1. youtube.com Cloudnine C989M RGB Mechanical Keyboard Review
  2. pcgamer.com Bringing joy to wallets and wrists alike, two of my favorite ergonomic keyboards are both discounted in the Prime Day sales | PC Gamer
  3. cuttles.io Cloud Nine C989M Review: Split Mechanical, $199
  4. technologyhumans.com Cloud Nine C989M Ergonomisch mechanisch toetsenbord: comfort en gaming beperkt door grootte en software | Computers
  5. cloudnineergo.com Cloud Nine C989 ErgoFSK Ergonomic Mechanical Split-Keyboard - Kailh Box Switches - Cloudnine Ergonomic Solutions
  6. judge.me Cloud Nine C989 ErgoFSK Ergonomic Mechanical Split ...