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The Keychron K2 Wireless Mechanical Keyboard is a compact 75% mechanical keyboard designed for users who want a perfect balance between functionality and desk space. Featuring 84 keys, the K2 retains dedicated function and navigation keys while offering a streamlined layout suitable for work, gaming, and everyday productivity. The K2-A1 variant comes equipped with Keychron Super Red mechanical switches, a white LED backlight, and a durable ABS plastic frame. It supports both Bluetooth 5.1 wireless connectivity for up to three devices and a reliable USB Type-C wired connection, making it compatible with Windows, macOS, Android, and iOS. Powered by a 4000mAh rechargeable Li-Polymer battery, the K2 offers up to 240 hours of wireless usage with the backlight off. It features 1000Hz polling in wired mode, 90Hz polling over Bluetooth, N-Key Rollover in wired mode, and 18 white lighting effects with adjustable brightness levels. With its Mac-friendly layout, Windows compatibility, and reliable mechanical performance, the Keychron K2 is an excellent choice for professionals, students, and enthusiasts alike.
The Keychron K2 (Version 2) supports Bluetooth 5.1 connectivity, allowing you to pair with up to three devices and switch seamlessly between Windows, macOS, Android, and iOS. A USB Type-C wired connection is also available for uninterrupted performance.
Equipped with Keychron Super Red Mechanical Switches, the K2-A1 delivers a smooth and lightweight linear typing experience. Combined with a compact 75% layout and Mac-specific keycaps, it is ideal for work, study, and everyday gaming.
Powered by a 4000mAh rechargeable battery, the K2 offers up to 240 hours of wireless usage with the backlight off. The white LED backlight features multiple lighting effects and adjustable brightness for enhanced visibility.
| Number of Keys | 84 keys |
| Switches | Keychron Super blue/red/brown switches |
| Number of Multimedia Keys | 12 |
| Main Body Material (A, B Series) | ABS |
| Main Body Material (C Series) | Aluminum bezels and ABS bottom frame |
| Keycap Material | ABS |
| Layout | ANSI |
| Polling Rate (Wired Mode) | 1000Hz |
| Polling Rate (Wireless Mode) | 90Hz |
| CONNECTIVITY AND POWER | |
| Backlit Types | 18 |
| Backlit | Adjustable 4-level RGB backlit |
| System | Windows/Android/Mac/iOS |
| Battery | 4000mAh Rechargeable li-polymer battery |
| BT Working Time (Backlit off) | Up to 240 hours (Lab test result may vary by actual use) |
| BT Working Time (Single LED) | Up to 68 hours (Lab test result may vary by actual use) |
| BT Working Time (RGB) | Up to 72 hours (Lab test result may vary by actual use) |
| Charging Time | Around 3 hours |
| Connection | Bluetooth and Type-C cable |
| Bluetooth version | 5.1 |
| Bluetooth Device Name | Keychron K2 |
| Compatible System | macOS/Windows/ |
| PHYSICAL UNIT | |
| Dimension (Plastic frame version) | 313 x 123mm |
| Weight | About 663g / 23.4oz |
| Dimension (Aluminum frame version) | 317 x 129mm |
| Weight | About 794g / 28oz |
| Height with keycap (front) | 30mm |
| Height with keycap (rear) | 40mm |
| Operating Environment | -10 to 50℃ |
| PACKAGE CONTENT | 1 x Keyboard |
| 1 x USB-A to USB Type-C Cable | |
| 1 x Keycap Puller | |
| 1 x User Manual |
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