First generation tri-mode connection including Bluetooth, 2.4GHz and USB Type-C cable with a 30% space saving 89-key layout with a numpad, the RK89 offers you features like hot-swap PCB, noise reduction, pre-lubed and adjusted stabilizers, on-board backlight setting, DIY software support and a durable battery with fast charge to provide a highly personalized, comfortable and diverse experience at home or at work. 

Features

• Innovative 85% Key Layout: A perfect mesh of TKL and full-size keyboards, RK89 integrates numpad while saving 30% of space by reducing only 15 keys. 
• Hob-swap PCB: The keyboard supports 3-pins and 5-pins switches (supports 98% switches available on the market) and allows easy change without soldering. 
• 2-Layer of Silencer Foam: RK89 has 20% noise reduction and 90% hollow sound removal thanks to the pre-installed double layer silencer foams. 
• Well-adjusted and lubed stabilizers: Pre-lubed stabilizers provide enhanced auditory and tactile experience. The large keys are adjusted by the manufacturer, thus ensuing the keys retain stability and provide a homogenous typing-feel across the board.
• DIY Software Supports: Customization for key-binding and backlight settings are available with the software, supported by Windows system in wired mode. 
• On-Board Custom Backlight Setting: RK89 provides 20 on-board blue backlit modes with 5 levels of brightness and flowing speed to adapt to your different playing needs.
  
• Fast recharge with long use hours: 1850 mAh with 60 hours battery life (with backlight off) and full charge time up to 3 to 4 hours. 
• Visible Battery Durability: Press Fn + Enter to view the battery status. Durability is shown by the number keys at 25%, 50%, 75% and 100% (3, 5, 8, 10 keys lit respectively).
• Triple Mode Connectivity: First generation of triple-mode which includes Bluetooth 5.0, 2.4 GHz and USB-C wired mode. The hub design includes one type-C port to connect to PC and charge, and two USB ports to connect to mouse, headphones, etc. 

Specification

• Brand Name: RK Royal Kludge
• Product Model: RK89
• Keys Number: 89
• Switch: Factory Lubed RK Lemon switch
• Color: Klien Blue
• Connection Mode: 2.4G Wireless/Bluetooth/USB Wired
• Backlit: RGB
• Layout: 89 Keys - 85% Keyboard Layout
• System: Windows/Android/Mac/IOS
• Battery Capacity: 1850mAh

Benefits

• Compact and space-saving: Offers 30% space reduction while rivaling the functionality of full-sized keyboards. 
  
• Compatible with various systems and devices: First generation to include the tri-mode connectivity. Also can be run with Windows, Android, Mac and IOS systems. Connect with various devices with the versatile hub-design.
• Easy and efficient customization of vibrant backlight and switches with hot-swap PCB.
• Visible battle durability in just two key-presses. 
• Long battery life with fast recharging to ensure a smooth and uninterrupted experience.
• High pre-built quality for a silent, soft typing experience featuring pre-lubed switches and silencer foams to give the best auditory and tactile feeling. 
• Professional assistance available over wired connection.