1. Introduction
The GMKtec GMK K3PRO is a powerful and compact mini PC designed for a wide range of applications, from commercial use to gaming and content creation. Featuring an Intel i7-12650H processor, 24GB of LPDDR5 RAM, and high-speed SSD storage, it delivers robust performance in a small form factor. This manual provides essential information for setting up, operating, maintaining, and troubleshooting your GMKtec K3PRO Mini PC.
Front view of the GMKtec K3PRO Mini PC highlighting its core features.
2. Package Contents
Please check the box for the following items:
- GMKtec K3PRO Mini PC Body
- Power Adapter
- Power Cable
- HDMI Cable
- User Manual
- Mounting Screws
- Backrest Cable (for VESA mount)
Illustration of the items included in the GMKtec K3PRO Mini PC package.
3. Specifications
| Feature | Specification |
|---|---|
| Brand Name | GMKtec |
| Model Number | NucBox K3 PRO |
| Type | Mini Desktop / Mini PC |
| CPU | Intel i7-12650H (12th Gen, 10 Cores, 16 Threads, 3.5GHz~4.7GHz, TDP 45W) |
| Processor Brand | Intel |
| Graphics Card | Intel UHD Graphics (Integrated, up to 1.40GHz, 64EU, AV1 video decoding) |
| Memory (RAM) | 24GB LPDDR5 4800 MT/s (onboard, non-upgradable) |
| Storage (ROM) | M.2 2280 SSD (PCIe 3.0, supports up to 2TB, PCIe 4.0 for efficient reading/storage) |
| Graphical Output | 2x HDMI 2.0 (4K@60Hz), 1x Type-C DP output (supports up to 4096x2160). Supports 3-screen 4K synchronized display. |
| Wireless Connectivity | WiFi 6 (AX201), Bluetooth 5.2 |
| Wired Network | RJ45 1000M (Gigabit Ethernet) |
| USB-A Ports | 2x USB 3.2 (Gen1*1) 5Gbps, 2x USB 2.0 |
| USB-C Ports | 1x Type-C (supports 40Gbps data transfer, PD power input (requires 100W), Type-C output) |
| Audio | 1x 3.5mm CTIA audio jack |
| Operating System | Windows 11 Pro |
| Dimensions | 123 x 112 x 43.2 mm |
| Net Weight | 425g |
| Certifications | CE, FCC, RoHS, PSE |
| Additional Features | Quick removal design, Anti-roll cage design, Silent cooling, VESA mount support, Anti-theft lock hole |
Overview of the GMKtec K3PRO's key features and design elements.
4. Setup Guide
4.1 Connecting Peripherals
- Connect Display(s): Use the HDMI 2.0 ports or the Type-C port to connect your monitor(s). The K3PRO supports up to three 4K displays simultaneously.
- Connect Keyboard and Mouse: Plug your USB keyboard and mouse into the available USB-A ports.
- Connect to Network: For a wired connection, plug an Ethernet cable into the RJ45 1000M port. For wireless, ensure your WiFi network is available (WiFi 6 supported).
- Connect Audio: If using external speakers or headphones, connect them to the 3.5mm CTIA audio jack.
4.2 Powering On
- Connect Power Adapter: Plug the power adapter into the DCIN port on the back of the mini PC, then plug the power cable into a wall outlet.
- Power On: Press the power button located on the front of the mini PC. The power indicator light will illuminate.
Detailed diagram of the front and rear interface ports on the GMKtec K3PRO Mini PC.
4.3 VESA Mounting (Optional)
The K3PRO supports VESA mounting, allowing you to attach it to the back of a compatible monitor or to a wall mount. Use the provided backrest cable and screws to secure the mini PC to your VESA mount.
The GMKtec K3PRO Mini PC supports VESA mounting for space-saving setups.
5. Operating Instructions
5.1 Initial Boot and Windows 11 Pro Setup
Upon first power-on, the system will guide you through the initial setup of Windows 11 Pro. Follow the on-screen instructions to configure your region, language, network, and user account.
The GMKtec K3PRO comes pre-installed with Windows 11 Professional Edition.
5.2 Multi-Display Configuration
The K3PRO supports connecting up to three 4K displays. Once connected, Windows will automatically detect them. You can configure display settings (e.g., extend, duplicate, resolution) via the Display Settings in Windows.
Enjoy an expanded field of view with 3-screen 4K synchronized display support.
5.3 Network Connectivity
Utilize the integrated WiFi 6 for high-speed wireless internet or the Gigabit Ethernet port for a stable wired connection. Bluetooth 5.2 allows for seamless connection to wireless peripherals.
The K3PRO features WiFi 6 and 1000M wired network for fast and stable connectivity.
6. Maintenance
6.1 Cleaning
Regularly clean the exterior of the mini PC with a soft, dry cloth. Ensure ventilation grilles are free from dust to maintain optimal cooling performance. Do not use liquid cleaners directly on the device.
6.2 Storage Expansion/Upgrade
The K3PRO features a quick demolition design for easy access to internal components. You can expand the M.2 SSD storage up to 2TB. Refer to the diagram below for guidance on accessing the internal components.
The quick demolition design allows for easy access for storage upgrades.
Note: The 24GB LPDDR5 RAM is onboard and cannot be replaced or upgraded.
7. Troubleshooting
7.1 No Power
- Ensure the power adapter is securely connected to both the mini PC and a working power outlet.
- Check if the power outlet is functional by plugging in another device.
- Try a different power cable if available.
7.2 No Display Output
- Verify that the HDMI or Type-C cable is securely connected to both the mini PC and the monitor.
- Ensure the monitor is powered on and set to the correct input source.
- Try a different display cable or monitor if possible.
- Restart the mini PC.
7.3 No Internet Connection
- Wired: Check the Ethernet cable connection and ensure your router/modem is working.
- Wireless: Verify that WiFi is enabled in Windows settings and you are connected to the correct network with the correct password. Restart your router/modem.
7.4 System Slowdown
- Close unnecessary applications running in the background.
- Check for Windows updates and driver updates.
- Ensure adequate ventilation around the mini PC to prevent overheating.
- Run a disk cleanup and defragmentation (for HDD, not typically needed for SSD).
8. User Tips
- Optimal Placement: Place the mini PC in a well-ventilated area to ensure efficient cooling and prevent performance throttling.
- Regular Updates: Keep your Windows operating system and device drivers updated to ensure optimal performance and security.
- Backup Data: Regularly back up important data to an external drive or cloud storage to prevent data loss.
- Security Lock: Utilize the anti-theft lock hole for physical security in public or shared environments.
9. Warranty and Support
The GMKtec K3PRO Mini PC comes with a 1-year warranty. For technical support, warranty claims, or further assistance, please contact GMKtec Official Store customer service through your purchase platform or their official website. Please have your product model and purchase details ready when contacting support.
