Introduction
The Logitech G512 is a high-performance mechanical gaming keyboard designed for an immersive gaming experience. It features advanced technologies, a modern and sleek design, and robust construction. This manual provides essential information for setting up, operating, maintaining, and troubleshooting your G512 keyboard.
Key features include a 1 ms report rate, GX Blue mechanical switches, customizable full-spectrum RGB lighting with LIGHTSYNC technology, and a convenient USB pass-through port. The G512 is engineered to deliver a blend of performance, advanced features, and unparalleled build quality.

Figure 1: Angled view of the Logitech G512 Lightsync RGB Mechanical Gaming Keyboard, showcasing its full layout and RGB lighting.
Setup Guide
1. Unpacking
Carefully remove the keyboard from its packaging. Ensure all components, including the keyboard and the attached USB cable, are present.
2. Connecting the Keyboard
- Locate two available USB 2.0 ports on your computer.
- Plug the primary USB connector (marked with a keyboard icon) from the G512 keyboard into one of your computer's USB ports. This connection provides power and data for the keyboard's primary functions.
- Plug the secondary USB connector (marked with a USB icon) from the G512 keyboard into another available USB port. This connection powers the USB pass-through port located on the keyboard.

Figure 2: The Logitech G512 keyboard connected via its dual USB cables, highlighting the USB pass-through port on the top right.
3. Software Installation (Logitech G HUB)
For full customization of lighting, macros, and other advanced features, it is recommended to install the Logitech G HUB software.
- Visit the official Logitech G website: www.logitechg.com/ghub
- Download the latest version of Logitech G HUB compatible with your operating system.
- Follow the on-screen instructions to complete the installation.
- Once installed, launch G HUB to configure your G512 keyboard.
Operating Instructions
Key Features and Functions
The G512 keyboard offers a range of features designed to enhance your gaming and typing experience.
- GX Blue Mechanical Switches: These switches provide a tactile and audible click feedback, ideal for users who prefer a distinct actuation point and sound.
- LIGHTSYNC RGB Lighting: Customize the per-key RGB lighting with approximately 16.8 million colors using Logitech G HUB. Lighting can be synchronized with in-game actions, audio, or screen content.
- USB Pass-Through: A dedicated USB 2.0 port on the keyboard allows you to conveniently connect a mouse, headset, or other USB devices directly to your keyboard.
- Media Controls and Function Keys:
- FN + F5-F12: Media controls (Play/Pause, Stop, Previous, Next, Mute, Volume Down, Volume Up).
- FN + F1-F4: Lighting controls (Brightness, Lighting Effects).
- Game Mode Button: Disables the Windows key to prevent accidental interruptions during gameplay. Can be configured via G HUB to disable other keys.

Figure 3: Top-down view of the Logitech G512 keyboard, illustrating the standard key layout and dedicated media/function keys.
Customization with Logitech G HUB
Logitech G HUB software provides extensive customization options:
- Lighting: Create custom RGB lighting profiles, choose from preset effects, or synchronize lighting with other LIGHTSYNC-enabled devices.
- Assignments: Program custom macros, reassign keys, or assign system commands to any programmable key.
- Game Mode: Customize which keys are disabled when Game Mode is active.
- Profiles: Create and save multiple profiles for different games or applications, which can automatically switch when the corresponding program is launched.
Maintenance
Proper maintenance ensures the longevity and optimal performance of your Logitech G512 keyboard.
Cleaning
- General Cleaning: Use a soft, lint-free cloth slightly dampened with water or a mild cleaning solution to wipe down the keyboard surface. Avoid harsh chemicals or abrasive materials.
- Keycaps: For deeper cleaning, keycaps can be carefully removed using a keycap puller (not included) to clean underneath. Ensure the keyboard is unplugged before attempting this.
- Dust and Debris: Use compressed air to remove dust and debris from between the keycaps and around the switches.
General Care
- Avoid spilling liquids on the keyboard. In case of a spill, immediately unplug the keyboard and allow it to dry completely before reconnecting.
- Do not expose the keyboard to extreme temperatures or direct sunlight for prolonged periods.
- Handle the USB cable carefully to prevent damage to the connectors or cable insulation.

Figure 4: Side profile of the Logitech G512 keyboard, illustrating the ergonomic keycap design and the sturdy aluminum frame.
Troubleshooting
This section addresses common issues you might encounter with your G512 keyboard.
| Problem | Possible Cause | Solution |
|---|---|---|
| Keyboard not responding | Loose USB connection, driver issue, or system conflict. |
|
| RGB lighting not working or incorrect | Software settings, G HUB not running, or firmware issue. |
|
| USB pass-through port not working | Secondary USB cable not connected, power issue, or device incompatibility. |
|
| Keys not registering or double-typing | Debris under keycap, switch malfunction, or software issue. |
|
Specifications
Detailed technical specifications for the Logitech G512 Lightsync RGB Mechanical Gaming Keyboard.
| Feature | Detail |
|---|---|
| Model Number | 920-008936 |
| Dimensions (L x W x H) | Approximately 18 x 7 x 1.75 inches (Package Dimensions) |
| Weight | Approximately 2.79 pounds |
| Switch Type | GX Blue Mechanical (Tactile and Clicky) |
| Connectivity | USB 2.0 (Dual USB cables required) |
| USB Pass-Through | Yes, 1x USB 2.0 port |
| Lighting | LIGHTSYNC RGB (Per-key customizable, ~16.8M colors) |
| Material | Brushed Aluminum Top Case |
| Color | Carbon |
| Report Rate | 1 ms |
| Compatible Devices | Gaming Console (via USB), PC |
Warranty and Support
Warranty Information
This Logitech G512 keyboard is sold as a renewed product. Warranty terms for renewed products may vary from new products. Please refer to the specific warranty information provided at the time of purchase or contact the seller for details regarding the warranty period and coverage for renewed items.
For standard Logitech products, warranty information can typically be found on the official Logitech website. It is recommended to retain your proof of purchase for any warranty claims.
Customer Support
For technical assistance, troubleshooting beyond this manual, or warranty inquiries, please contact Logitech Customer Support or the seller from whom you purchased the renewed product.
- Logitech Support Website: Visit support.logi.com for FAQs, drivers, software downloads, and contact options.
- Seller Support: If purchased as a renewed item, the seller may offer direct support or specific return/replacement policies.

Figure 5: The iconic Logitech G logo, typically found on the keyboard, signifying the brand.





