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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)

4.2 4.2 out of 5 stars 107 ratings

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CK721 Gunmetal
Wireless
Red Switch

Purchase options and add-ons


About this item

  • 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.
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$64.99
Get it Apr 5 - 10
In Stock
Ships from and sold by SpaceBound.
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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 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)
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Price-7% $64.99
Typical:$70.19
-21% $59.99
Typical:$75.81
$74.31-25% $59.99
Typical:$79.99
$119.99-22% $69.99
List:$89.98
Delivery
Get it Apr 5 - 10
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Customer Ratings
Quality of material
4.7
4.7
3.5
4.7
4.8
4.5
For gaming
4.4
4.4
3.1
4.4
4.2
4.6
Value for money
4.2
4.2
3.0
4.2
4.6
4.7
Sold By
SpaceBound
SpaceBound
Seller's Club 2
SpaceBound
XUYANG ERA US
J-Devol
connectivity tech
Bluetooth, USB-C
Bluetooth, USB-C
USB 2.0
Bluetooth, USB-C
Bluetooth, USB, USB-C
Bluetooth, USB-C, 2.4GHz
number of keys
67
19
61
68
81
81
hardware interface
bluetooth
bluetooth
bluetooth
bluetooth
compatible devices
Laptop
Laptop
Laptop
Laptop
PC
Laptop, Tablet, PC
keyboard description
Gaming
Gaming
Gaming
Gaming
Mechanical
Mechanical
operating system
Android,Ios,Mac Os,Windows 8
Android,Ios,Mac Os,Windows 8
Windows 8
Android,Ios,Mac Os,Windows 8
Windows 7,8,9,10,11, Mac, Mac OS
Windows 7, Windows 10, Windows 8

From the manufacturer

CK721 Space Gray - Your Everyday PC Carry
CK721 Space Gray - Your Everyday PC Carry

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 Switches

Hybrid Wireless Technology

3-Way Customizable Dial

Universal Compatibility

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.

3-Way Customizable Dial

The precision dial gives you the tactile controls of a turn or a press, customizable via software.

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.

Easy-to-use Software & On-the-fly Controls
CK721 Space Gray SK622 Space Gray SK653 Space Gray
CK721 Space Gray SK622 Space Gray SK653 Space Gray
Customer Reviews
4.2 out of 5 stars
107
3.5 out of 5 stars
26
3.5 out of 5 stars
247
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

What's in the box

  • USB Cable
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    Product information

    Technical Details

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    Additional Information

    Warranty & Support

    Amazon.com Return Policy:You may return any new computer purchased from Amazon.com that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. Amazon.com reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. Amazon.com will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.
    Product Warranty: For warranty information about this product, please click here

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    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)


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    Product guides and documents


    Discover similar items

    Included Components: USB Cable
    Hand Orientation: Ambidextrous
    Number of Keys: Up to 70
    Special Features: Wrist Rest
    Keyboard Backlighting Color Support: RGB
    Connectivity Technology: Bluetooth
    Connectivity Technology: USB-C
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    Product Description

    The CK721 wireless mechanical keyboard is a hassle-free workhorse, a no-fuss keyboard 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.​

    Customer reviews

    4.2 out of 5 stars
    4.2 out of 5
    107 global ratings

    Customers say

    Customers like the quality, bluetooth, and build quality of the keyboard. For example, they say it's well built, has lots of features, and has a very good pc app to program shortcuts. They appreciate the compact size and the number of cool lighting effects. Customers are also happy with the feel, sound quality, and value of the product.

    AI-generated from the text of customer reviews

    13 customers mention12 positive1 negative

    Customers are satisfied with the quality of the keyboard. They mention that it is well-built, has nice keys, and has a good PC app. Some appreciate the industrial design and the full-color LED backlighting. Overall, most are happy with their purchase and recommend it to others.

    "...Its beautiful and the sound it makes is so thick but nice and quiet. Try it, you won't regret it." Read more

    "...This keyboard is pretty awesome. It's small, compact, and has 3 different connection options, wired, bluetooth, and USB...." Read more

    "Pros:Cool softwareNice keysBrightWell built*Cons:Keyboard doesn't wake with PC..." Read more

    "...I have tested both wired, Bluetooth, and wireless. All works great between daily use and gaming. I haven’t had an issue with it at all...." Read more

    5 customers mention5 positive0 negative

    Customers like the bluetooth connectivity of the keyboard. They mention that it has wired, USB, and Bluetooth as options for connecting devices. They also appreciate the ability to use it wired or wirelessly with a dongle. Customers also mention that the Bluetooth connectivity is stable and can wake up from sleep relatively fast.

    "...It's small, compact, and has 3 different connection options, wired, bluetooth, and USB...." Read more

    "...The ability to use it wired, wirelessly with dongle, or with Bluetooth is fantastic." Read more

    "...Bluetooth connectivity is stable and can wake up from sleep relatively fast...." Read more

    "...It's wireless with bluetooth and 2.4ghz (nice touch), but other keyboards have that as well...." Read more

    5 customers mention5 positive0 negative

    Customers are satisfied with the build quality of the keyboard. Some mention that it's well built, solid, and looks good.

    "Pros:Cool softwareNice keysBrightWell built*Cons:Keyboard doesn't wake with PC..." Read more

    "...I haven’t had an issue with it at all.To me, this is a pretty solid board if you are not all about the hot swappable keys...." Read more

    "...Build quality quite good. Included MX Cherry green switches no RGB, so if you going to replace red switches to another - buy RGB version...." Read more

    "...Other than that, it’s a solid keyboard with very good pc app to program shortcuts and macro, every single key is easily remapable including the knob." Read more

    5 customers mention5 positive0 negative

    Customers are satisfied with the compactness of the keyboard. They mention that it has 3 different connection options, and it saves them space.

    "...This keyboard is pretty awesome. It's small, compact, and has 3 different connection options, wired, bluetooth, and USB...." Read more

    "...This keyboard saved me so much space and I love it. I cannot wait for them to come out with more accessories for it...." Read more

    "Good size and ergonomics, battery doesn’t last very long with RGB ON but can go through a couple weeks with one charge and RGB OFF...." Read more

    "Love the compactness and quality! A little difficult to change LED settings without the Cooler Master software, but still love it." Read more

    4 customers mention4 positive0 negative

    Customers like the lighting under the keycaps. They say it's appealing, has a number of cool lighting effects, and is super bright. Customers also appreciate the markings are all fully lit with RGB.

    "...There's also a number of cool lighting effects, even per-key LED programmability, all of which can be controlled through their MasterPlus+ software...." Read more

    "...The RGB is super bright and I find the pre-install settings are more than enough. This means no additional program needs to be downloaded...." Read more

    "GREAT INDUSTRIAL DESIGN AND I LOVE THE MARKINGS ARE ALL FULLY LIT WITH RGB BUT AS I USED IT I DISCOVERED IT HAS MANY FLAWS...." Read more

    "...The lighting under the keycaps was appealing to add to the pros.What I didn't love was the materials used...." Read more

    3 customers mention3 positive0 negative

    Customers are satisfied with the feel of the keyboard. They mention that it has a unique feel, good size and ergonomics, and comfortable key caps. They also say that it is exceptionally smooth to type on and lovely to look at.

    "Good size and ergonomics, battery doesn’t last very long with RGB ON but can go through a couple weeks with one charge and RGB OFF...." Read more

    "...is stellar, and the dial on the keyboard gave the keyboard a unique feel...." Read more

    "...It is exceptionally smooth to type on, and lovely to look at!" Read more

    3 customers mention3 positive0 negative

    Customers are satisfied with the sound quality of the keyboard. They mention that the sound is smooth and quiet.

    "...This keyboard is all you'll ever need. Its beautiful and the sound it makes is so thick but nice and quiet. Try it, you won't regret it." Read more

    "...Plus, the sound is pretty smooth and quiet to me (compared to my old one). Of course it could be better, but I’m fine with it...." Read more

    "Sounds good..." Read more

    3 customers mention3 positive0 negative

    Customers are satisfied with the value of the keyboard. They mention that it's amazing for this price to get a hot-swappable keyboard.

    "...Maybe the original colors of grey and silver, but 30th ann. is worth every penny." Read more

    "...Honestly love the keyboard for the discounted price (30% off when I purchased) but would probably have picked up Steel Series or Razor if they were..." Read more

    "Wow,this product from cooler master,its amazing for this price to get a hot-swappable keyboard,i hope that cooler master will made a custom keycaps..." Read more

    Perfect 65%!
    4 Stars
    Perfect 65%!
    Originally aiming for the white/ silver one, but decided to get the 30th anniversary version one. Why you may ask?1. It came with PBT caps already, compared to the originals.2. It came with a coiled connector.3. The color was pretty convincing.I was hesitant with what the negative reviews stated. Since the 30th ann. version was a bit of an upgrade, I caved. LolSo far, it has been a bit over a month in use. I have tested both wired, Bluetooth, and wireless. All works great between daily use and gaming. I haven’t had an issue with it at all.To me, this is a pretty solid board if you are not all about the hot swappable keys. The RGB is super bright and I find the pre-install settings are more than enough. This means no additional program needs to be downloaded. If you want to do more customization, it’s needed.This keyboard saved me so much space and I love it. I cannot wait for them to come out with more accessories for it.Plus, the sound is pretty smooth and quiet to me (compared to my old one). Of course it could be better, but I’m fine with it.A few cons are the wrist pad and space bar. The wrist pad should of been more of a slope for better comfort. I also believe the space bar needs more lube or a different stabilizer.I decided to switch out the black PBT key caps that came with it to white ones I already had.Is it pricey? Not really. Maybe the original colors of grey and silver, but 30th ann. is worth every penny.
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    Top reviews from the United States

    Reviewed in the United States on June 15, 2022
    Color: Ck721 GunmetalSize: WirelessStyle: Blue SwitchVerified Purchase
    One person found this helpful
    Report
    Reviewed in the United States on December 24, 2023
    Color: CK720 Sliver WhiteSize: Hot-SwappableStyle: Red SwitchVerified Purchase
    Reviewed in the United States on November 17, 2022
    Color: Ck721 GunmetalSize: WirelessStyle: Brown SwitchVerified Purchase
    5 people found this helpful
    Report
    Reviewed in the United States on September 4, 2023
    Color: CK720 Sliver WhiteSize: Hot-SwappableStyle: Red SwitchVerified Purchase
    Reviewed in the United States on February 17, 2023
    Color: MK721 ChamelonSize: WirelessStyle: Red SwitchVerified Purchase
    Customer image
    4.0 out of 5 stars Perfect 65%!
    Reviewed in the United States on February 17, 2023
    Originally aiming for the white/ silver one, but decided to get the 30th anniversary version one. Why you may ask?

    1. It came with PBT caps already, compared to the originals.
    2. It came with a coiled connector.
    3. The color was pretty convincing.

    I was hesitant with what the negative reviews stated. Since the 30th ann. version was a bit of an upgrade, I caved. Lol

    So far, it has been a bit over a month in use. I have tested both wired, Bluetooth, and wireless. All works great between daily use and gaming. I haven’t had an issue with it at all.
    To me, this is a pretty solid board if you are not all about the hot swappable keys. The RGB is super bright and I find the pre-install settings are more than enough. This means no additional program needs to be downloaded. If you want to do more customization, it’s needed.

    This keyboard saved me so much space and I love it. I cannot wait for them to come out with more accessories for it.

    Plus, the sound is pretty smooth and quiet to me (compared to my old one). Of course it could be better, but I’m fine with it.

    A few cons are the wrist pad and space bar. The wrist pad should of been more of a slope for better comfort. I also believe the space bar needs more lube or a different stabilizer.

    I decided to switch out the black PBT key caps that came with it to white ones I already had.

    Is it pricey? Not really. Maybe the original colors of grey and silver, but 30th ann. is worth every penny.
    Images in this review
    Customer image Customer image Customer image
    Customer imageCustomer imageCustomer image
    2 people found this helpful
    Report
    Reviewed in the United States on June 26, 2023
    Color: CK721 Sliver WhiteSize: WirelessStyle: Blue SwitchVerified Purchase
    Reviewed in the United States on February 20, 2024
    Color: CK720 GunmetalSize: Hot-SwappableStyle: White SwitchVerified Purchase
    Reviewed in the United States on January 19, 2023
    Color: CK720 GunmetalSize: Hot-SwappableStyle: Red SwitchVerified Purchase

    Top reviews from other countries

    Translate all reviews to English
    Miguel A.
    4.0 out of 5 stars Buen teclado pero mal bateria
    Reviewed in Mexico on March 12, 2023
    Color: Ck721 GunmetalSize: WirelessStyle: Brown SwitchVerified Purchase
    Eugene Buikema
    4.0 out of 5 stars Great value!
    Reviewed in Canada on February 6, 2023
    Color: CK720 GunmetalSize: Hot-SwappableStyle: Red SwitchVerified Purchase
    David
    3.0 out of 5 stars Good value mostly
    Reviewed in Canada on December 21, 2022
    Color: CK720 Sliver WhiteSize: Hot-SwappableStyle: Red SwitchVerified Purchase
    One person found this helpful
    Report
    renato moro rezende
    5.0 out of 5 stars Bonito e Compacto RGB excelente!
    Reviewed in Brazil on October 9, 2022
    Color: Ck721 GunmetalSize: WirelessStyle: Blue SwitchVerified Purchase
    MentalDisorder
    5.0 out of 5 stars Amazing Keyboard‼️
    Reviewed in Japan on October 7, 2022
    Color: Ck721 GunmetalSize: WirelessStyle: Brown SwitchVerified Purchase
    3 people found this helpful
    Report