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YUNZII CK98 Wireless Hot Swappable OLED Mechanical Keyboard-Math

Out of stock
The price history chart tracks the lowest price over time (excluding shipping costs).
| Yunzii CK98 | Yunzii IF99 | Epomaker QK108 |
69 Overall/ Value 68.5Build Quality 67.5Customizability 70.4Performance 63.6Productivity 67.7Portability 51.0![]() | 86 Overall/ Value 86.4Build Quality 80.1Customizability 89.7Performance 81.9Productivity 89.0Portability 63.1![]() | 84 Overall/ Value 83.9Build Quality 75.3Customizability 82.1Performance 80.8Productivity 88.4Portability 62.1![]() |
0.0 stars (0 reviews) | 0.0 stars (0 reviews) | 3.7 stars (6 reviews) |
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Name Yunzii CK98 | Name Yunzii IF99 | Name Epomaker QK108 |
Release year 2023 | Release year 2025 | Release year 2025 |
Switch Options - | Switch Options Linear | Switch Options Linear, Tactile, Silent |
Profile Normal Profile | Profile Normal Profile | Profile Normal Profile |
Hot Swappable | Hot Swappable | Hot Swappable |
Layout Size 98% | Layout Size 95% | Layout Size 100% |
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 LED |
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 1000 Hz |
Battery capacity 3750 mAh | Battery capacity 8000 mAh | Battery capacity 8000 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 Gasket Mount |
Screw in Stabilizers | Screw in Stabilizers | Screw in Stabilizers |
Sound Dampening | Sound Dampening | Sound Dampening |
Backlight Rgb, South-face | Backlight Rgb, South-face | Backlight Rgb, South-face |
Case Colors | Case Colors | Case Colors |
Case Material Acrylic | Case Material - | Case Material ABS |
Keycaps Material PC | Keycaps Material PBT | Keycaps Material PBT |
Dimensions - | Dimensions 46 x 385 x 143 mm | Dimensions 43 x 439 x 139 mm |
Weight - | Weight 1238.5g | Weight 1180g |
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.