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68
YUNZII CK98 Wireless Hot Swappable OLED Mechanical Keyboard-Math

Yunzii CK98

The Yunzii CK98 OLED Math is a 98-key mechanical keyboard suited for users who want a versatile wireless or wired connection, customizable OLED display, and hot-swappable switches. It fits hobbyists who like to modify their keyboard’s look and feel, and professionals who appreciate a compact layout with advanced features like system monitoring on the keyboard itself.</p... Read more
Compare prices from $80.00 to $109
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YUNZII CK98 Wireless Hot Swappable OLED Mechanical Keyboard-Math

Yunzii CK98 - Keyboard and Large Aluminum Box / Math / Ice Blade Switch
Yunzii
Ships to US
$80

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Compare Yunzii CK98 vs Ducky OK M 98 vs Darmoshark TOP98 Specification

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Yunzii CK98Ducky OK M 98Darmoshark TOP98
68
YUNZII CK98 Wireless Hot Swappable OLED Mechanical Keyboard-Math
79
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  • Released in 2023
  • Includes a Yes, OLED display
  • Equipped with a 3750 mAh battery
  • Made with a Acrylic case
  • Features PC keycaps
  • Offers Yes, Rgb, South-face, Rgb South-face RGB lighting
  • Released in 2026
  • Has Clicky, Linear switch options
  • Includes a No display
  • Connects via USB-C
  • Supports VIA configuration
  • Runs at a 1000 Hz polling rate
  • Offers Yes, Rgb, North-face, Rgb North-face RGB lighting
  • Released in 2024
  • Has Linear, Tactile switch options
  • Includes a Yes, TFT display
  • Features N-key rollover
  • Uses a Top Mount mounting style
  • Equipped with a 4000 mAh battery
  • Weighs about 1262 g
  • Sized at 40 x 392 x 143 mm
  • Offers Yes, Rgb RGB lighting
Scores
  • Performance: 64.2
  • Build Quality: 67.5
  • Productivity: 67.3
  • Customizability: 69.8
  • Portability: 50.9
Scores
  • Performance: 70
  • Build Quality: 72.6
  • Productivity: 89.3
  • Customizability: 78.2
  • Portability: 51.7
Scores
  • Performance: 62
  • Build Quality: 47.1
  • Productivity: 62.3
  • Customizability: 73.3
  • Portability: 50.3
Name
Yunzii CK98
Name
Ducky OK M 98
Name
Darmoshark TOP98
Release year
2023
Release year
2026
Release year
2024
Switch Options
-
Switch Options
Clicky, Linear
Switch Options
Linear, Tactile
Profile
Normal Profile
Profile
Normal Profile
Profile
Normal Profile
Hot Swappable
 
Hot Swappable
 
Hot Swappable
 
Layout Size
98%
Layout Size
98%
Layout Size
98%
Layout Standard
ANSI
Layout Standard
ANSI
Layout Standard
ANSI
Layout Ergonomics
Normal
Layout Ergonomics
Normal
Layout Ergonomics
Normal
Knob Support
 
Knob Support
 
Knob Support
 
Display Support
 
OLED
Display Support
 
Display Support
 
TFT
Mac/Win Support
 
Mac/Win Support
 
Mac/Win Support
 
Multi-Media Keys
 
Multi-Media Keys
 
Multi-Media Keys
 
USB-C
 
USB-C
 
USB-C
 
USB passthrough
 
USB passthrough
 
USB passthrough
 
Connection
Bluetooth, 2.4 GHz, Wired, Wireless
Connection
Bluetooth, 2.4 GHz, Wired, Wireless
Connection
Bluetooth, 2.4 GHz, Wired, Wireless
Polling Rate
-
Polling Rate
1000 Hz
Polling Rate
-
Battery capacity
3750 mAh
Battery capacity
-
Battery capacity
4000 mAh
Hall Effect Support
 
Hall Effect Support
 
Hall Effect Support
 
QMK Support
 
QMK Support
 
QMK Support
 
VIA Support
 
VIA Support
 
VIA Support
 
VIAL Support
 
VIAL Support
 
VIAL Support
 
N-Key Rollover
 
N-Key Rollover
 
N-Key Rollover
 
Rapid Trigger
 
Rapid Trigger
 
Rapid Trigger
 
Mount Style
Gasket Mount
Mount Style
Gasket Mount
Mount Style
Top Mount
Screw in Stabilizers
 
Screw in Stabilizers
 
Screw in Stabilizers
 
Sound Dampening
 
Sound Dampening
 
Sound Dampening
 
Backlight
 
Rgb, South-face
Backlight
 
Rgb, North-face
Backlight
 
Rgb
Case Colors
Case Colors
Case Colors
Case Material
Acrylic
Case Material
-
Case Material
-
Keycaps Material
PC
Keycaps Material
PBT
Keycaps Material
PBT
Dimensions
-
Dimensions
-
Dimensions
40 x 392 x 143 mm
Weight
-
Weight
-
Weight
1262g
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Product Description

The Yunzii CK98 OLED Math is a 98-key mechanical keyboard suited for users who want a versatile wireless or wired connection, customizable OLED display, and hot-swappable switches. It fits hobbyists who like to modify their keyboard’s look and feel, and professionals who appreciate a compact layout with advanced features like system monitoring on the keyboard itself.

Key Features

  • Customizable OLED screen displays system info such as CPU/GPU usage, temperature, and time, plus user-uploaded images or GIFs for personalization.
  • Supports three connection modes: wired USB-C, Bluetooth 5.1, and 2.4GHz wireless, allowing flexible device pairing.
  • Hot-swappable switch sockets accept both 3-pin and 5-pin mechanical switches, enabling easy switch replacement without soldering.
  • South-facing RGB backlighting offers smoother and brighter lighting effects, adjustable via key combinations or software on Windows.

Build Quality

  • Transparent acrylic case provides a solid, visually distinctive chassis.
  • Gasket-mounted design with poron foam and silicone pads reduces typing impact, resulting in a quieter and more flexible typing experience.
  • Durable, oil-resistant translucent keycaps in CSA V2 profile enhance longevity and feel.

Typing Experience

  • Gasket mounting absorbs keystroke impact, making typing smoother and less noisy compared to rigid mounts.
  • Hot-swappable switches allow users to tailor typing feel and sound without technical skills.

Connectivity

  • Triple-mode connectivity supports wired use for minimal latency and wireless options for convenience.
  • Built-in 3750mAh battery and energy-saving features extend wireless usage time, though exact battery life is unknown.
  • Includes 2.4GHz dongle and coiled cable for immediate wireless and wired use.

Compatibility

  • Software for OLED customization and RGB settings works only on Windows, limiting full feature use for macOS users.
  • Supports Windows and macOS systems for basic keyboard functions and connectivity.

Trade-offs

  • Software limitations restrict OLED and RGB customization to Windows, which may disappoint macOS users.
  • Battery life details are unspecified, so wireless endurance is uncertain.
  • Transparent acrylic case may show fingerprints and scratches more easily than opaque materials.

Frequently Asked Questions (FAQ)

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