About Cloud Nine
Cloud Nine Ergonomic Solutions was founded in 2019 in Boulder, Colorado, by Blake Olson and Chris Greiner, with a focus on building high-end split mechanical keyboards for people who spend long hours at a desk. The lineup centers on a small family of split ergonomic keyboards, including the full-size ErgoPRO and the tenkeyless ErgoTKL, each built around genuine mechanical switches and an adjustable split, tilt, and tenting design rather than the membrane construction common in the ergonomic category.
Independent outlets including Tom's Hardware and The Gadgeteer have reviewed Cloud Nine's split mechanical keyboards, calling out the cable-linked adjustable split and genuine mechanical switch feel as standout traits in a category where most ergonomic keyboards are membrane-based. In our own testing, the ErgoTKL stood out as the only true split mechanical keyboard we reviewed in its lineup, pairing tactile Kailh Brown switches with built-in side tenting in a single tenkeyless body.
Brand website: cloudnineergo.com
What Cloud Nine makes
Cloud Nine's range runs wider than the products we review. The lines we know best from our own testing are marked with a star:
ErgoPRO (C979)
Full-size split mechanical keyboard, the brand's largest layout with a numpad retained.
ErgoTKL (C959)
Tenkeyless split mechanical keyboard with built-in 7-degree side tenting and an aluminum Smart Wheel control. — featured on DeskRated
ErgoFSK (C989)
Split mechanical keyboard with braided linking cables for adjustable separation between halves.
Accessories
Palm rests, XL linking cables, and extended protection plans sized for each keyboard model.
Why we recognized Cloud Nine
The DeskRated Top Brand recognition isn't paid for and can't be applied for. We award it to the brands whose products consistently stand out in our hands-on category reviews. Cloud Nine earned it on the strength of the products below, evaluated the same way every product on this site is: bought, used at a real desk, and judged on merit.
Cloud Nine products we rated highly
Cloud Nine ErgoTKL Ergonomic Tenkeyless Mechanical Keyboard
Built around genuine Kailh Brown tactile switches, the ErgoTKL is a true split mechanical keyboard with built-in 7-degree side tenting that eliminates forearm pronation without a separate tenting kit. In our testing, the tenkeyless layout kept the mouse closer and cut shoulder reach, and the aluminum Smart Wheel gave quick tactile control over volume, scroll, and app-switching.
Read the 7 Best Ergonomic Keyboards of 2026 guide →What earned Cloud Nine the recognition
- One of the only ergonomic keyboard brands we reviewed offering a true split mechanical design with genuine Kailh switches, rather than the membrane switches common across the category
- Built-in fixed side tenting on the ErgoTKL removes the need for a separate tenting kit, a detail our testing found genuinely reduces forearm pronation
- The tenkeyless body keeps overall footprint smaller and the mouse closer to center, cutting shoulder reach during long sessions
- Independent tech outlets including Tom's Hardware and The Gadgeteer have separately reviewed Cloud Nine's split mechanical keyboards and highlighted the adjustable cable-linked split as a standout feature
- A focused product lineup built specifically around ergonomic split mechanical typing, rather than a broad general keyboard catalogue