1. Introducció
The GMKtec M3 Plus Mini PC is a compact and powerful desktop computer designed for a wide range of applications, from demanding computing tasks and AAA gaming to office work and home entertainment. It features a 12th Gen Intel Core i9-12900HK processor, ample memory, and high-speed storage, all within a small form factor. This manual provides essential information for setting up, operating, and maintaining your mini PC.

Figure 1: GMKtec M3 Plus Mini PC
2. Contingut del paquet
Marqueu la casella per als elements següents:
- Mini PC main unit
- Adaptador de corrent
- Cable HDMI
- Suport de muntatge VESA
- Manual d'instruccions
3. Producte acabatview
The GMKtec M3 Plus Mini PC is equipped with a 12th Gen Intel Core i9-12900HK processor, offering 14 cores and 20 threads with a maximum frequency of 5.0GHz. It includes Intel Iris Xe Graphics for visual processing. The compact design (127 x 127 x 48.2mm) allows for versatile placement.

Figura 2: frontal i posterior View of the Mini PC with Ports
The device features a comprehensive set of ports for connectivity:
- Ports frontals: 2x USB 3.2 ports, Power Button
- Ports posteriors: DC IN (20V/5A), 2x HDMI (4K@60Hz), 1x RJ45 (2.5G LAN), 2x USB 3.2, 1x USB 2.0, 1x Type-C (DP/DATA), 1x 3.5mm Audio Jack

Figure 3: Detailed Port Layout
4. Configuració
- Connectar l'alimentació: Plug the power adapter into the DC IN port on the mini PC and then into a power outlet.
- Connecta la pantalla: Connect your monitor(s) to the mini PC using the HDMI or Type-C (DP Alt Mode) ports. The device supports up to three displays simultaneously.
- Connecteu els perifèrics: Connect your keyboard, mouse, and other USB devices to the available USB ports.
- Connexió de xarxa: For wired internet, connect an Ethernet cable to the 2.5G RJ45 LAN port. For wireless internet, ensure Wi-Fi is enabled in the operating system.
- Encès: Press the power button located on the front of the mini PC.
5. Instruccions de funcionament
- Encès/apagat: Premeu el botó d'engegada per engegar el dispositiu. Per apagar-lo, utilitzeu l'opció de tancament de Windows o manteniu premut el botó d'engegada durant uns segons.
- Sistema operatiu: The mini PC comes pre-installed with Windows 11 Pro. Follow the on-screen instructions for initial setup.
- Actualitzacions: Regularly check for and install Windows updates and driver updates for optimal performance and security.

Figure 4: Mini PC with Windows 11 Pro
6. Expansió d'emmagatzematge i memòria
The mini PC comes standard with 32GB of dual-channel DDR4 RAM (16GB x 2) and a 1TB PCIe 4.0 x 4 SSD.
- Memòria: The system supports up to 64GB of DDR4 RAM.
- Emmagatzematge: Storage can be expanded up to 4TB using M.2 2280 PCIe 4.0 x 4 SSDs (up to 2 drives). It also supports M.2 2242 SATA/PCIe x 4 SSDs.
Refer to the internal structure diagram for component locations and expansion slots.

Figure 5: Storage and Memory Expansion

Figure 6: Product Internal Structure
7. Configuració de la pantalla
The GMKtec M3 Plus supports up to three simultaneous displays at 4K@60Hz resolution.
- Connect displays using the available HDMI 2.0 ports and the USB4 (DP Alt Mode) / USB-C (video output compatible) port.
- To configure multiple displays, right-click on the desktop in Windows, select "Display settings," and arrange your displays as needed.

Figure 7: 4K Display Output

Figure 8: Triple Display Output Setup
8. Connectivitat
- LAN per cable: Features a 2.5Gbps RJ45 LAN port for high-speed wired network connections.
- Sense fil: Equipped with Wi-Fi 6 for fast and stable wireless internet and Bluetooth 5.2 for connecting wireless peripherals.
- Ports USB: Includes USB4 (max 40Gbps), USB3.2 Gen2 (max 10Gbps), and USB3.2 Gen1 ports for various devices.

Figure 9: High-Speed Network Connectivity
9. Sistema de refrigeració
The mini PC incorporates a silent fan system with twin cooling pipes and a turbofan design to ensure efficient heat dissipation and quiet operation, even under heavy loads.

Figura 10: Sistema de refrigeració eficient

Figure 11: Silent Fan System
10. Muntatge VESA
A VESA mount bracket is included, allowing you to easily attach the mini PC to the back of a compatible monitor or to a wall, saving desk space and creating a cleaner workspace.

Figure 12: VESA Mounting Options
11. Solució De Problemes
- Sense energia: Ensure the power adapter is securely connected to both the mini PC and a working power outlet.
- Sense pantalla: Check all display cable connections. Ensure the monitor is powered on and set to the correct input source. Try connecting to a different display port or monitor.
- Rendiment lent: Close unnecessary applications. Check for system updates. Ensure adequate ventilation for the mini PC.
- Problemes de xarxa: For wired connections, check the Ethernet cable and router. For Wi-Fi, ensure the network is available and the password is correct.
12. Especificacions
| Característica | Detall |
|---|---|
| Marca | GMKtec |
| Model | M3 Plus |
| Sistema operatiu | Windows 11 Pro |
| CPU | Intel Core i9-12900HK (14 Cores, 20 Threads, up to 5.0 GHz) |
| Gràfics | Intel Iris Xe Graphics 1450MHz |
| RAM | 32GB DDR4 (Dual Channel, 3200MT/s, Max 64GB) |
| Emmagatzematge | 1TB M.2 2280 PCIe 4.0 x 4 SSD (Max 4TB, supports 2 drives) |
| LAN per cable | RJ45 de 2.5 Gbps |
| Connectivitat sense fil | Wi-Fi 6, Bluetooth 5.2 |
| Sortida de vídeo | 2x HDMI 2.0, 1x Type-C (DP Alt Mode) - Supports 3 displays at 4K@60Hz |
| Ports USB | 1x USB4 (40Gbps), 1x USB 3.2 Gen2 (10Gbps), 3x USB 3.2 Gen1, 1x USB 2.0 |
| Àudio | 3.5mm Àudio Jack |
| Dimensions | 12.8 x 12.8 x 4.8 cm |
| Color | Plata metàl·lica |
13. Garantia i Suport
The GMKtec M3 Plus Mini PC comes with a 1-year manufacturer's warranty. Additionally, 24-hour customer support is available to assist you with any inquiries or issues. Please refer to the included instruction manual for specific contact details.

Figura 13: Informació sobre garantia i assistència
14. Vídeo del producteview
Vídeo 1: Un overview of the GMKtec M3 Plus Mini PC's features, internal components, ports, and usage scenarios.