1. Introduction
The SOLAKAKA SK90 is a compact 75% layout wireless gaming keyboard designed for versatility and comfort. It features tri-mode connectivity, a long-lasting battery, customizable RGB backlighting, and intuitive multimedia controls, making it suitable for both gaming and office use across various operating systems.
Image: Overview of the SOLAKAKA SK90 keyboard, highlighting its compact design and key features.
Image: Visual representation of the SK90's main features including PBT keycaps, 4000mAh battery, dual knobs, ergonomic design, quiet keys, 14 RGB lighting effects, tri-mode connection, and 90-key layout with number pad.
2. Package Contents
Please verify that all items are present in the package:
- SOLAKAKA SK90 Keyboard (x1)
- User Manual (x1)
- USB-C Cable (x1)
3. Setup
3.1 Charging the Keyboard
Before first use, fully charge the keyboard using the provided USB-C cable. Connect the USB-C end to the keyboard's port and the USB-A end to a power source (e.g., computer USB port, wall adapter). The keyboard has a built-in 4000mAh battery.
3.2 Connectivity Options
The SK90 keyboard supports three connection modes:
- Bluetooth 5.0 (BT1, BT2, BT3): For wireless connection to up to three different Bluetooth-enabled devices.
- 2.4GHz Wireless: For wireless connection via the included USB dongle.
- USB-C Wired: For a direct wired connection and charging.
Image: Instructions for switching between Bluetooth (FN+1/2/3), 2.4GHz Wireless (FN+4), and USB-C Wired (FN+5) connection modes.
3.3 Connecting via Bluetooth
- Turn on the keyboard.
- Press Fn + 1 (or 2 or 3) to select a Bluetooth channel. The indicator light will blink, indicating pairing mode.
- On your device (PC, Mac, Smartphone, Tablet), search for Bluetooth devices and select "SOLAKAKA SK90".
- Once connected, the indicator light will stop blinking.
3.4 Connecting via 2.4GHz Wireless
- Locate the 2.4GHz USB dongle. It is securely stored under one of the fold-out feet on the underside of the keyboard.
- Insert the USB dongle into an available USB port on your computer.
- Press Fn + 4 on the keyboard to switch to 2.4GHz wireless mode. The keyboard should automatically connect.
Image: The keyboard features ergonomic 2-level adjustable feet and a built-in USB dongle storage compartment for convenience.
3.5 Connecting via USB-C Wired
- Connect the provided USB-C cable to the keyboard's USB-C port.
- Connect the other end of the USB-C cable to a USB port on your computer.
- Press Fn + 5 on the keyboard to switch to USB-C wired mode. The keyboard will be ready for use.
4. Operating Instructions
4.1 Dual Knob Functionality
The SK90 features two dedicated knobs for enhanced control:
- Left Knob: Adjusts RGB backlight brightness. Press the knob to cycle through different RGB lighting modes.
- Right Knob: Controls multimedia volume. Rotate to adjust volume up or down. Press the knob to toggle mute on/off.
Image: Close-up of the dual knobs, illustrating their functions for RGB control and multimedia volume.
4.2 RGB Backlighting Modes
The keyboard offers 14 adjustable RGB backlighting modes. You can cycle through these modes by pressing the Left Knob. To turn the RGB backlight on or off, press the Fn + ON/OFF key combination.
Image: Demonstrates the vibrant RGB lighting effects and the Fn + ON/OFF key for control.
4.3 Ergonomic Design and Typing Experience
The SK90 features an ergonomic tilt-angle design with adjustable feet at the bottom, allowing you to customize the typing angle for comfort. The membrane switch structure provides soft, silent keystrokes, minimizing noise and ensuring a comfortable typing experience.
Image: Illustrates the ergonomic design of the keyboard, including the adjustable feet for customized typing angles.
Image: Highlights the cushioned feel and silent operation of the membrane switches for a quieter and more comfortable experience.
4.4 Multi-System Compatibility
The SK90 is fully compatible with Windows, macOS, and other operating systems, offering plug-and-play functionality without the need for additional drivers.
5. Maintenance
5.1 Cleaning the Keyboard
The keyboard features PBT keycaps, which are resistant to oil, wear, and fading, and a splash-proof and dust-resistant design. To clean your keyboard:
- Disconnect the keyboard from all power sources and devices.
- Use a soft, lint-free cloth lightly dampened with water or a mild cleaning solution to wipe down the keycaps and surface.
- For dust and debris between keys, use compressed air.
- Avoid using harsh chemicals or abrasive materials.
5.2 Battery Care
To prolong the life of the built-in 4000mAh battery:
- Avoid fully discharging the battery frequently.
- Store the keyboard in a cool, dry place when not in use for extended periods.
- Charge the keyboard regularly, even if not in constant use, to maintain battery health.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Keyboard not connecting wirelessly (2.4GHz) | USB dongle not found or improperly inserted. | Ensure the 2.4GHz USB dongle is securely inserted into a USB port. Check the storage location under the keyboard's fold-out feet. Press Fn + 4 to select 2.4GHz mode. |
| Keyboard not connecting via Bluetooth | Not in pairing mode, or device not discoverable. | Press Fn + 1/2/3 to enter pairing mode (indicator light blinks). Ensure Bluetooth is enabled on your device and it is discoverable. |
| Keys are unresponsive or keyboard is locked | Accidental press of the lock key. | Locate the lock key (often near the function keys or indicated by a padlock icon) and press it again to unlock the keyboard. |
| Backlight is not visible or makes keys harder to see | Keycaps are not shine-through; backlight illuminates around keys. | This is a design characteristic. The backlight illuminates the area around the keys, not through the key legends. Adjust brightness using the left knob or turn off if preferred in dimly lit environments. |
| Multimedia keys (F-keys) require Fn key press | Function keys are default, multimedia functions require Fn. | This is the default behavior. To use multimedia functions (e.g., play/pause, volume), press the Fn key in combination with the corresponding F-key. |
| Num Lock light not working on Mac | Compatibility difference with macOS. | On macOS, the Num Lock is typically always on for the number pad, and the indicator light may not function as it does on Windows. This is normal behavior. |
7. Specifications
| Feature | Detail |
|---|---|
| Model Number | SK90 |
| Product Dimensions | 14.4 x 5.2 x 1.65 inches |
| Item Weight | 1.94 pounds |
| Manufacturer | CORBOBO |
| Connectivity Technology | Bluetooth 5.0, 2.4GHz Wireless, USB-C Wired |
| Keyboard Description | Membrane Gaming Keyboard |
| Battery Capacity | 4000mAh (1 9V battery included) |
| Number of Keys | 81 |
| Backlighting | RGB (14 modes) |
| Keycap Material | PBT |
| Compatible Devices | Laptop, PC, Smartphone, Tablet |
| Recommended Uses | Business, Everyday Use, Gaming, Office Work, Student |
8. Warranty and Support
For product support, technical assistance, or warranty inquiries, please contact CORBOBO customer service. While specific warranty details are not provided in this manual, standard consumer rights and return policies apply. Please refer to your purchase documentation or the retailer's website for detailed warranty information.
For the latest information and support, please visit the official CORBOBO store or contact their customer service directly.