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Cloud Nine
ErgoFSK
Ergonomic Split Mechanical KeyboardErgonomic Split
Mechanical Keyboard

A keyboard engineered to fit you...

  • PROFESSIONALS

  • CREATIVES

  • DEVELOPERS

  • GAMERS

The ErgoFSK is a full-size ergonomic keyboard designed to help you type naturally and AVOID WRIST STRAIN, RSI, & TYPING DISCOMFORT.

ALUMINUM

SMART WHEEL

DIAL IN YOUR CONTROL

VOLUME

Easily control volume / mute.

FULLY LOADED:

HOTKEYS
Dedicated CUT, COPY, PASTE, SELECT ALL hotkeys.
DEDICATED "M" KEYS
Use the "M" keys as hotkeys for custom functions.
MACROS
Program macros to boost productivity and efficiency.
DUAL LAYER
Unlock a secondary layer of functions on top of existing buttons.
10-KEY ROLLOVER
Up to 10 simultaneous keypresses with anti-ghosting.
GAMING MODE
Use the lockout function to deactivate the Windows® key at critical moments.

SWITCH OPTIONS

An amazing typing experiance awaits.

The ErgoFSK uses only premium Kailh® Box mechanical switches so every keystroke is a joy.

With three different typing feels to choose from, you're sure to find one that suits you...

30 Day Money Back Guarantee

Trial

45 Day Risk-Free

2 Year Warranty

Warranty

2-Year Warranty

Cloud Nine ErgoFSK
Ergonomic Split Mechanical Keyboard

  • 30 Day Money Back Guarantee Risk Free
    45-Day Trial
  • 2 Year Warranty 2-Year
    Warranty
  • Free US Shipping Free US
    Shipping
  • Free Returns Free
    Returns

Cloud Nine ErgoFSK
Ergonomic Split Mechanical Keyboard

CHOOSE A TYPING FEEL
Help me decide
$4.99 OFF
Pair with an accessory and save:
40% OFF CABLE BUNDLE
Separate your keyboard halves to the max (up to 20 in / 51 cm) Learn More
+$9.60 $15.99
Add a keyboard protection plan:
What's covered?
  • 30 Day Money Back Guarantee Risk Free
    45-Day Trial
  • 2 Year Warranty 2-Year
    Warranty
  • Free US Shipping Free US
    Shipping
  • Free Returns Free
    Returns

Why you'll love it:

Type in perfect comfort and speed with the Cloud Nine C989 ErgoFSK – an ergonomic keyboard that’s engineered to fit you. The split design and genuine Kailh® mechanical key switches make for a typing experience that’s both blissful and fun. You’ll blast through emails, code, or your favorite game with a smile on your face and total comfort under your hands. Check this C9 review article for more reference.

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Risk Free 45-Day Trial

Your 45-day trial begins the day your keyboard is delivered to your doorstep. If you decide it isn't a perfect fit for you within the first 45 days, we'll have it picked up and issue a full refund. (Awesome, right?)
We do ask all customers to spend up to 14 days on their new keyboard before starting a return or exchange so their hands have enough time to adjust to split-keyboard's unique feel + ergonomics!

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2-Year Warranty

If there's something wrong with your keyboard, we'll replace it for up to 2 years, starting from the date of original purchase.
This warranty is valid only if the purchaser uses the product for personal consumer use. The warranty no longer applies after any resale, whether new or used. Original, dated proof of purchase by the original purchaser, and official warranty document to make a warranty claim.

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Free Shipping & Returns

Get your keyboard shipped straight to you at no extra cost
*Continential US only.

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Free Returns

If you don’t love your keyboard, just contact one of our helpful customer service team to confirm eligibility and arrange a return. We'll pick it up and issue you a full refund.
To be eligible for a return, you must be within the 45-day trial period and have had the keyboard for at least 14 days; the keyboard must also be clean and undamaged. You will be refunded the full keyboard price minus the value of any discount, interest accrued, and/or shipping charges.

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SWITCH OPTIONS:

KAILH® BOX
RED
Feel: Quiet linear feel with no click

A smooth and linear feel with very low audible click makes the RED switch perfect for speedy typing and quieter environments.

KAILH® BOX
BROWN
Feel: Light tactile feel with a subtle click

A balanced tactile feel and a medium audible click make the BROWN switch our customer’s most popular choice.

KAILH® BOX
WHITE
Feel: Noticeable tactile feel with a definitive click

A high tactile “bump” feel and substaintial audible “click” makes the WHITE switch perfect for those who want lots of typing feedback.

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+
Accident
Protection
An accident protection plan keeps your Cloud Nine keyboard covered from everyday mishaps and guarantees you a brand-new replacement.
Accident Protection
Prepaid Shipping
Brand New Replacement
In addition to our standard keyboard warranty, an accident protection plan includes coverage from:
Standard
Warranty
Accident
Protection
Malfunctions due to defects in materials and workmanship
Liquid / coffee spills
Falls and drops
Malfunctions from normal wear and tear
Failure from power surge
Number of claims
1
2
Refurbished replacement
After 30 Days
N/A
Brand-new replacement
First 30 Days
Full
Term
Prepaid 2-way shipping
Key benefits include:
  • Accidental damage protection
  • Brand-new replacement item if your keyboard malfunctions
  • Replacement arrives in 3-4 business days
  • Pre-paid 2-way shipping
  • No deductibles to worry about
  • Expedited processing
  • Easy online claims
Standard
Warranty
Accident
Protection
Malfunctions due to defects in materials and workmanship
Liquid / coffee spills
Falls and drops
Malfunctions from normal wear and tear
Failure from power surge
Number of claims
1
2
Refurbished replacement
After 30 Days
N/A
Brand-new replacement
First 30 Days
Full
Term
Prepaid 2-way shipping

Customer Reviews

Based on 203 reviews
70%
(142)
17%
(34)
6%
(12)
1%
(3)
6%
(12)
V
VelkySyr
ErgoFSK is a godsend

Having had rotator cuff repair surgery 7 weeks ago, I just started working again 2 weeks ago. This 2-piece keyboard is a godsend as I can position the left keyboard piece any way that I need for typing with a semi-functonal arm/hand. It's a lot different than any keyboard I've used in the past. But the learning curve was short by virtue of the keyboard's design. Also, this thing is a beast. It's SOLID - excellent quality and within that description, it's just really substantial. And for those of you who are into customization, just the lighting alone will be a geek-fest for you. It may seem expensive, but to me the quality and design is well worth it.

@Cloudnine, PLEASE put the FSK user manual on the website!! Thanks!!

J
Joshua Beardslee

This is the best keyboard I’ve ever owned. Amazing!

R
R
2+ Year Review - Pretty Basic for Mac (No Macros / Bells or Whistles) Could be better...

I have not had any of the issues reported in the 1* reviews.
I like the split, and angles. I think that’s great. But it’s WAY overpriced to still not have any support in the Mac ecosystem. I would definitely not buy again at the price it is, since it’s nothing more than a keyboard in this use case.
Zero improvement in over 2 years. I’d look somewhere else, it doesn’t seem like this company is moving foward.

J
Jonathan Cousar

Cloud Nine C989 ErgoFSK Ergonomic Mechanical Split-Keyboard

J
Jason Hricik
Very comfortable keyboard with a caveat

I love this keyboard and it really helps keep my shoulders squared during the day - which helps promote mobility. One complaint though, I wish they put a ‘B’ key on both boards instead of just the left. There’s space for the key and I frequently found myself pressing a phantom position with the right hand until I got used to it.