Add to your order



- NO ADDITIONAL COST: You pay $0 for repairs – parts, labor and shipping included.
- COVERAGE: Plan starts on the date of purchase. Malfunctions covered after the manufacturer's warranty. Power surges covered from day one.
- EASY CLAIMS PROCESS: File a claim anytime online at www.Asurion.com/Amazon or by phone. Most claims approved within minutes. If we can’t repair it, we’ll send you an Amazon.com Gift Card for the purchase price of your covered product or replace it.
- EXPERT TECH HELP: Real experts are available 24/7 to help with set-up, connectivity issues, troubleshooting and much more.
- TERMS & DETAILS: More information about this protection plan is available within the “Product guides and documents” section. Simply click “User Guide” for more info. Asurion will also email your plan confirmation with Terms & Conditions to the address associated with your Amazon account within 24 hours of purchase (if you do not see this email, please check your spam folder). Contact us if you cannot locate your plan confirmation and Terms & Conditions via email at AmazonFeedback@Asurion.com.
- NO ADDITIONAL COST: You pay $0 for repairs – parts, labor and shipping included.
- COVERAGE: Plan starts on the date of purchase. Malfunctions covered after the manufacturer's warranty. Power surges covered from day one.
- EASY CLAIMS PROCESS: File a claim anytime online at www.Asurion.com/Amazon or by phone. Most claims approved within minutes. If we can’t repair it, we’ll send you an Amazon.com Gift Card for the purchase price of your covered product or replace it.
- EXPERT TECH HELP: Real experts are available 24/7 to help with set-up, connectivity issues, troubleshooting and much more.
- TERMS & DETAILS: More information about this protection plan is available within the “Product guides and documents” section. Simply click “User Guide” for more info. Asurion will also email your plan confirmation with Terms & Conditions to the address associated with your Amazon account within 24 hours of purchase (if you do not see this email, please check your spam folder). Contact us if you cannot locate your plan confirmation and Terms & Conditions via email at AmazonFeedback@Asurion.com.
- UNLIMITED DEVICES (EXCLUDES MOBILE PHONES): Covers electronic purchases made on Amazon in the past two years from enrollment plus future Amazon purchases including computers, tablets, TVs, office devices, gaming consoles, headphones, cameras, connected devices, home theater electronics, Amazon devices and more.
- CLAIM LIMIT & FEES: $3,000/12-month period claim limit for the total cost of all repairs, replacements and reimbursements across all claims. If we can’t repair it, we’ll send an Amazon e-gift card or replace the device. A $99 service fee will apply to claims on products with a purchase price of $500 and up.
- WE’VE GOT YOU COVERED: Plan begins 30 days after enrollment and covers mechanical and electrical malfunctions, regardless of the manufacturer's warranty. Plus drops, spills and cracked screens during normal use for portable devices.
- EXPERT TECH HELP: Real experts are available 24/7 to help with set-up, connectivity issues, troubleshooting and more.
- LOW MONTHLY BILLING: $16.99 plus tax billed monthly, cancel anytime. THIS PROGRAM IS MONTH-TO-MONTH AND WILL CONTINUE UNTIL CANCELLED. Coverage for all products ends 30 days after plan is cancelled.
-
-
-
-
-
-
-
2 VIDEOS
-
-
Cooler Master CK721 65% Hybrid Wireless 2.4GHz/Bluetooth Space Gray Mechanical Gaming Keyboard, Linear Red Switches, Customizable RGB, Ergonomic Design, 3-Way Dial, QWERTY (CK-721-GKTR1-US)
Learn more
- Free returns are available for the shipping address you chose. You can return the item for any reason in new and unused condition: no shipping charges
- Learn more about free returns.
- Go to your orders and start the return
- Select the return method
- Ship it!
Enhance your purchase
Brand | Cooler Master |
Compatible Devices | Laptop |
Connectivity Technology | Bluetooth, USB-C |
Keyboard Description | Gaming |
Special Feature | Wrist Rest |
Color | CK721 Gunmetal |
Number of Keys | 67 |
Style | Red Switch |
Item Dimensions LxWxH | 13.15 x 4.65 x 1.46 inches |
Material | Aluminum |
About this item
- Make sure this fits by entering your model number.
- Reliable Mechanical Switches: Dominate in any type of game with mechanical switches good for 50 million keystrokes. All the responsiveness, accuracy, and tactile satisfaction you can handle.
- Hybrid Wireless Technology: Choose between wired Type-C connectivity or your choice of wireless: 2.4 GHz for nearly lag-free input or Bluetooth 5.1 for easy, convenient connectivity.
- Universal Compatibility: Compatible with virtually every modern OS and platform: Windows 8 and above, Mac OS X, iOS and Android - and easily soft-switch between all devices with a simple keypress.
- 3-way Customizable Dial: The precision dial gives you the tactile controls of a turn or a press, customizable via software.
- Portable 65% Layout & Soft Wrist Rest: Low-friction cloth to keep you comfortable during long gaming sessions along with compact layout and design, perfect for on-the-go use with mobile devices and laptops.
Consider a similar item
Compare with similar items
![]() This item Cooler Master CK721 65% Hybrid Wireless 2.4GHz/Bluetooth Space Gray Mechanical Gaming Keyboard, Linear Red Switches, Customizable RGB, Ergonomic Design, 3-Way Dial, QWERTY (CK-721-GKTR1-US) | ![]() Cooler Master SK622 60% Wireless Bluetooth Space Gray Mechanical Low Profile Gaming Keyboard, Linear Red Switches, Customizable RGB, Ergonomic Design, Mac/Windows, QWERTY (SK-622-GKTR1-US) | ![]() ASUS ROG Falchion Wireless 65% Mechanical Gaming Keyboard | 68 Keys, Aura Sync RGB, Extended Battery Life, Interactive Touch Panel, PBT Keycaps, Cherry MX Red Switches, Keyboard Cover Case | ![]() Cooler Master SK622 60% Wireless Bluetooth Silver/White Mechanical Low Profile Gaming Keyboard, Linear Red Switches, Customizable RGB, Ergonomic Design, Mac/Windows, QWERTY (SK-622-SKTR1-US) | ![]() ASUS ROG Falchion NX 65% Wireless RGB Gaming Mechanical Keyboard | ROG NX Red Linear Switches, PBT Doubleshot Keycaps, Wired / 2.4G Hz, Touch Panel, Keyboard Cover Case, Macro Support | ![]() SteelSeries Apex Pro Mini Wireless Mechanical Gaming Keyboard – World’s Fastest Keyboard – Adjustable Actuation – Compact 60% Form Factor – RGB – PBT Keycaps – Bluetooth 5.0 – 2.4GHz – USB-C | |
---|---|---|---|---|---|---|
Customer Rating | 4.0 out of 5 stars (57) | 3.3 out of 5 stars (24) | 4.5 out of 5 stars (757) | 3.5 out of 5 stars (129) | 4.5 out of 5 stars (218) | 4.7 out of 5 stars (3397) |
Price | $99.99$99.99 | $69.99$69.99 | $132.99$132.99 | $59.26$59.26 | $142.64$142.64 | $173.89$173.89 |
Shipping | FREE Shipping. Details | FREE Shipping. Details | FREE Shipping. Details | FREE Shipping. Details | FREE Shipping. Details | FREE Shipping. Details |
Sold By | Amazon.com | Amazon.com | Amazon.com | Amazon.com | Amazon.com | Amazon.com |
Are batteries included? | Yes | Yes | Yes | Yes | Yes | Yes |
Are batteries required? | No | No | No | No | No | Yes |
Color | CK721 Gunmetal | Black | Black | Red Switch | Black | — |
Connectivity Technology | Bluetooth, USB-C | Bluetooth 4.0 | USB | Bluetooth 4.0 | Bluetooth | Bluetooth |
Item Dimensions | 13.15 x 4.65 x 1.46 inches | 11.54 x 4.06 x 1.19 inches | 12 x 3.98 x 1.5 inches | 11.54 x 4.06 x 1.19 inches | 14.49 x 5.59 x 2.4 inches | 4 x 11.5 x 1.6 inches |
Item Weight | 1.68 lbs | 0.98 lbs | 2.43 lbs | 0.98 lbs | 2.07 lbs | — |
From the manufacturer

CK721
Your Everyday PC Carry
The CK721 wireless mechanical keyboard is an elegant small form factor solution for both work and play. A 65% layout and hybrid wireless technology emphasizes portability with nearly universal OS & platform compatibility, while a sandblasted aluminum body and imbues the sleek durability necessary in an everyday workhorse. In addition, mechanical switches give you the reliable performance, feel, and responsiveness you can count on. With all the features you need that just work, the CK721 is the no-drama keyboard you want in the office and at your gaming setup.
- Reliable Mechanical Switches
- Hybrid Wireless Connectivity
- Universal Compatibility
- 3-Way Dial Customizable via Software
- Portable 65 Layout & Soft Wrist Rest
- Easy-To-Use Software & On-The-Fly Controls
- Removable Aluminum Top Plate
Features
|
|
|
|
---|---|---|---|
Reliable Mechanical SwitchesDominate in any type of game with mechanical switches good for 50 million keystrokes. All the responsiveness, accuracy, and tactile satisfaction you can handle. |
Hybrid Wireless TechnologyChoose between wired Type-C connectivity or your choice of wireless: 2.4 GHz for nearly lag-free input or Bluetooth 5.1 for easy, convenient connectivity. |
3-Way Customizable DialThe precision dial gives you the tactile controls of a turn or a press, customizable via software. |
Universal CompatibilityCompatible with virtually every modern OS and platform: Windows 8 and above, Mac OS X, iOS and Android - and easily soft-switch between all devices with a simple keypress. |
![]() |
![]() |
![]() |
|
---|---|---|---|
CK721 Space Gray | SK622 Space Gray | SK653 Space Gray | |
Keyboard Size | 65% Layout | 60% Layout | Full-Size Layout |
Switch Type | RGB Mechanical Red | RGB Low Profile Red | RGB Low Profile Red |
Material | Aluminum / Plastic | Aluminum / Plastic | Aluminum / Plastic |
16.7 Million RGB | ✓ | ✓ | ✓ |
Connection Type | 2.4 GHz, Bluetooth 5.1 & Type-C Wired | Bluetooth Wireless & USB Type-C Wired | Bluetooth Wireless & USB Type-C Wired |
32bit ARM Cortex | ✓ | ✓ | ✓ |
On-Board Memory | 512KB | 512KB | 512KB |
3-Way Customizable Knob | ✓ | ||
On-The-Fly System | Through Function Key (FN) | Through Function Key (FN) | Through Function Key (FN) |
OS Compatibilty | Windows 8+ / Mac OS X 10.10+ / Android / iOS | Windows 8+ / Mac OS X 10.10+ / Android / iOS | Windows 8+ / Mac OS X 10.10+ / Android / iOS |