Introduction
This manual provides essential information for setting up, operating, maintaining, and troubleshooting your GMKtec Nucbox M2 Pro S Mini PC. Please read these instructions carefully before using the product to ensure optimal performance and longevity.
Package Contents
Verify that all items listed below are included in your product package:
- 1x GMKtec Nucbox M2 Pro S Mini PC
- 1x Connection Cable
- 1x HDMI Cable
- 1x Power Adapter
- 1x Set of Screws (for mounting)

This image displays the retail packaging and all items included with the GMKtec Nucbox M2 Pro S Mini PC: the mini PC unit, a connection cable, an HDMI cable, a power adapter, and screws for mounting.
Setup Instructions
1. Connecting Peripherals
Connect your monitor(s), keyboard, and mouse to the appropriate ports on the mini PC. The GMKtec Nucbox M2 Pro S supports multiple display outputs for enhanced productivity.

A detailed view of the GMKtec Nucbox M2 Pro S Mini PC's front and rear ports. The front features two USB 3.2 ports and the power button. The rear includes an audio jack (3.5mm CTIA), two HDMI (4K@60Hz) ports, an RJ45 2.5G Ethernet port, two USB 3.2 ports, one USB 2.0 port, a Type-C (DP/DATA) port, and the DC power input.
2. Power Connection
Connect the power adapter to the DC input port on the mini PC, then plug the adapter into a power outlet.
3. Initial Power On
Press the power button located on the front of the mini PC. The system will boot up, and you may proceed with the operating system setup if it's the first use.
4. Multi-Display Configuration
The Nucbox M2 Pro S supports up to three independent 4K displays simultaneously. Connect your monitors to the available HDMI (2x) and USB Type-C (DP/DATA) ports. Configure display settings within your operating system.

The GMKtec Nucbox M2 Pro S Mini PC is shown connected to three monitors, demonstrating its capability for a triple display setup. This configuration supports 4K resolution at 60Hz across all displays via its HDMI and Type-C DP1.4 ports, enhancing productivity and visual experience.
This video provides a visual overview of the GMKtec Nucbox M2 Pro S Mini PC, showcasing its compact design, various ports, internal components like RAM and SSD, cooling system, and triple display capabilities. It highlights the Intel Core i7-1185G7 processor and connectivity features like WiFi 6 and Bluetooth 5.2.
Operating Instructions
1. Operating System
The GMKtec Nucbox M2 Pro S comes with Windows 11 Pro pre-installed and is also compatible with Linux operating systems. Follow the on-screen prompts for initial setup and personalization.
2. Network Connectivity
Connect to the internet via the 2.5G Gigabit Ethernet port (RJ45) for a stable wired connection, or utilize the integrated WiFi 6 for high-speed wireless access. Bluetooth 5.2 allows for seamless connection to wireless peripherals such as keyboards, mice, and audio devices.

This graphic highlights the advanced wireless capabilities of the GMKtec Nucbox M2 Pro S, featuring WiFi 6 for faster speeds (up to 2400Mbps) and improved coverage compared to WiFi 5, alongside Bluetooth 5.2 for stable and efficient peripheral connections.

The image illustrates the 2.5G Gigabit Ethernet (RJ45) port on the GMKtec Nucbox M2 Pro S, emphasizing its high-speed network capabilities with read-write speeds up to 271MB/s and transmission speeds up to 230MB/s, significantly faster than standard 1000Mbps connections.
This video demonstrates the GMKtec Nucbox M2 Pro S Mini PC in various usage scenarios, including home and office desktop work, business meetings, and light gaming. It emphasizes the PC's versatility and performance for different applications.
Maintenance and Upgrades
1. Storage Expansion
The Nucbox M2 Pro S supports storage expansion. It features an M.2 2280 NVMe (PCIe3.0) slot, expandable up to 2TB, and an additional M.2 2242 SATA slot, also expandable up to 2TB. For installation, carefully open the chassis and secure the new SSD in the designated slot.
2. RAM Upgrade
The mini PC comes with 16GB DDR4 RAM (SODIMM) and supports dual-channel expansion up to 64GB. To upgrade, locate the SODIMM slots inside the chassis, gently remove existing modules if necessary, and insert new compatible RAM modules.

This diagram shows the internal layout of the GMKtec Nucbox M2 Pro S, detailing the dual DDR4 SODIMM slots for RAM expansion up to 64GB and the M.2 2280 NVMe (PCIe3.0) SSD slot, which supports expansion up to 2TB. An additional M.2 2242 SATA slot is also available for further storage expansion up to 2TB.
3. Cooling System
The Nucbox M2 Pro S features a superconducting copper twin turbo cooling design with a two-way convection air inlet. This system is designed to maintain optimal operating temperatures and ensure quiet performance. Regularly ensure that the air vents are clear of dust and obstructions.

An internal view of the mini PC showcasing its superconducting copper twin turbo cooling design with a two-way convection air inlet. This system is engineered for efficient heat dissipation and quiet operation, maintaining optimal performance.
Troubleshooting
Common Issues and Solutions:
- No Power: Ensure the power adapter is securely connected to both the mini PC and a working power outlet. Check the power button for proper engagement.
- No Display: Verify that the HDMI or USB-C cables are firmly connected to both the mini PC and the monitor. Ensure the monitor is powered on and set to the correct input source.
- No Internet Connection: For wired connections, check the Ethernet cable and router status. For Wi-Fi, ensure the Wi-Fi adapter is enabled in the operating system and connected to the correct network.
- Peripheral Not Detected: Try connecting the peripheral to a different USB port. Ensure drivers are installed if required by the peripheral.
- System Slowdown: Check for excessive background processes or high CPU/RAM usage in Task Manager. Ensure sufficient free storage space.
If you encounter persistent issues, please refer to the Support section for further assistance.
Specifications
| Feature | Detail |
|---|---|
| Processor | Intel Core i7-1185G7 (4 Cores, 8 Threads, up to 4.8 GHz) |
| Graphics | Intel Iris Xe Graphics G7 96EU |
| RAM | 16GB DDR4 (Dual-channel, expandable up to 64GB) |
| Storage | 512GB M.2 2280 NVMe SSD (PCIe3.0, expandable up to 2TB), M.2 2242 SATA slot (expandable up to 2TB) |
| Operating System | Windows 11 Pro (compatible with Linux) |
| Wireless Connectivity | WiFi 6 (802.11ax), Bluetooth 5.2 |
| Wired Connectivity | RJ45 2.5G Gigabit Ethernet |
| Ports | 2x HDMI (4K@60Hz), 1x USB Type-C (4K@60Hz, DP/DATA), 3x USB 3.2, 1x USB 2.0, 1x 3.5mm CTIA Audio Jack, 1x DC Power Input |
| Dimensions (LxWxH) | 5.2 x 4.92 x 2.28 inches |
| Weight | 3.21 pounds |

This image illustrates the Intel Core i7-1185G7 processor, highlighting its 4 cores, 8 threads, 12MB cache, and 35W TDP. A performance comparison chart (from 3DMark 11) shows its superior performance against several other processors, emphasizing its capability for demanding tasks.
Warranty Information
GMKtec offers a 1-year limited warranty for each mini PC, effective from the date of purchase. This warranty covers all defects attributed to design and workmanship. Please retain your proof of purchase for warranty claims.
Customer Support
For any questions, technical assistance, or support needs, our professional after-sales team is available to help. You can reach us via email:
Email: support@gmktec.com
Please include your product model and a detailed description of your issue when contacting support to ensure a prompt and effective resolution.





