ThundeRobot ONCE81 Tri-Mode Mechanical Keyboard 81-Key Gasket RGB
ThundeRobot ONCE81 tri-mode mechanical keyboard with 81-key compact layout, 1.14-inch OLED screen, gasket structure, 6000mAh battery, hot-swappable switches, and 18 RGB lighting modes.
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The ThundeRobot ONCE81 is a premium tri-mode mechanical gaming keyboard featuring a compact 75% layout with 81 keys. It combines retro aesthetic appeal with modern gaming functionality, sporting a classic red and white color scheme that evokes the golden era of 1980s-90s gaming. The keyboard is equipped with a distinctive 1.14-inch ONCE-RETRO TFT color screen and intuitive rotary control knob, allowing users to customize GIFs, check battery status, switch between WIN/MAC layouts, and control volume, connection modes, and RGB settings with ease.
Built for durability and comfort, the ONCE81 features a gasket-mounted structure with five layers of sound dampening to minimize cavity noise and deliver a smooth typing experience. The keyboard uses hot-swappable mechanical switches (available in Lieyan, FC, or Scorpion variants) paired with high-quality PBT/PC keycaps featuring MDA profile and full-key thermal sublimation. The ABS plastic frame ensures longevity against daily wear. Connectivity is seamless with tri-mode support: 2.4GHz wireless, Bluetooth 3.0/5.0, and USB Type-C wired connection, with a dedicated button for instant mode switching. The 6000mAh battery delivers up to 400 hours of continuous use (backlight off) or 600 days in standby mode.
Customization options are extensive, with 18 preset RGB lighting patterns and 8 backlight colors accessible via the OLED screen and keyboard shortcuts (FN+INS). The keyboard is compatible with Windows XP through Win 11, Android, and macOS, making it ideal for gamers, office workers, and creative professionals seeking a compact, feature-rich mechanical keyboard.
- Tri-mode connectivity: 2.4GHz wireless, Bluetooth 3.0/5.0, USB Type-C
- 81-key compact layout (75%) saves approximately 30% desk space
- 1.14-inch ONCE-RETRO TFT color screen with rotary control knob
- Gasket-mounted structure with five layers of sound dampening
- Hot-swappable mechanical switches with PBT/PC keycaps
- 6000mAh battery: 400 hours continuous use or 600 days standby
- 18 RGB preset lighting modes with 8 backlight colors
- Compatible with Windows, macOS, and Android devices
| Type | Wireless / Wired |
| Connection Modes | 2.4GHz Wireless, Bluetooth 3.0/5.0, USB Type-C Wired |
| Key Layout | 81-key Compact (75%) |
| Form Factor | Compact (75%) |
| Switch Type | Mechanical Hot-Swappable (Lieyan, FC, or Scorpion variants) |
| Keycap Material | PBT/PC with MDA Profile |
| Keycap Design | Full-key Thermal Sublimation |
| Frame Material | ABS Plastic |
| Structure | Gasket-Mounted with 5 Layers Sound Dampening |
| Display | 1.14-inch ONCE-RETRO TFT Color OLED Screen |
| Control Interface | Rotary Control Knob + Screen Adjustments |
| Battery Capacity | 6000mAh |
| Battery Life (Backlight Off) | 400 hours continuous use |
| Battery Life (Standby) | 600 days |
| Charging Port | USB Type-C |
| RGB Lighting | 18 Preset Modes, 8 Backlight Colors |
| RGB Control | FN+INS or Screen Adjustments |
| Noise Reduction | Gasket Structure, Minimized Cavity Sounds |
| Hot-Swappable | Yes, All Keys |
| Compatible Operating Systems | Windows XP/Vista/7/8/10/11, macOS, Android |
| Color Scheme | Retro Classic Red and White |
| Desk Space Savings | Approximately 30% compared to full-size keyboards |