1. Introduction
This manual provides detailed instructions for setting up, operating, and maintaining your MINISFORUM N40 Mini PC. Please read this manual carefully before using the product to ensure proper function and longevity. The MINISFORUM N40 is a compact, fanless desktop computer designed for efficiency and silent operation, suitable for various applications including office work, home theater, and digital signage.
2. Product Overview
Key Features
- N4020 Processor: Equipped with Intel Celeron N4020 processor for efficient internet and office applications.
- Fanless and Silent Design: Energy-efficient components and cooling elements ensure silent operation and smooth 4K video playback.
- Large Capacity: 4GB RAM + 64GB eMMC with expandable SSD capacity (M.2 2242 SATA SSD slot, up to 1TB).
- Connectivity: Gigabit Ethernet LAN 1000M, Dual Band WiFi (802.11ac), and Bluetooth.
- Dual Screen Support: HDMI 1.2a and VGA ports for connecting two displays, supporting up to 4K@60Hz UHD output via HDMI.
- Auto Power On: Supports automatic power on after power failure.
Package Contents
- 1x Minisforum N40 Mini PC
- 1x US Power adapter
- 1x HDMI Cable
- 1x Manual
Product Dimensions and Weight
The MINISFORUM N40 Mini PC measures approximately 4.72 x 4.72 x 1.14 inches (LxWxH) and weighs about 1.39 pounds, making it highly portable and space-saving.

Figure 1: Front view of the MINISFORUM N40 Mini PC, showing USB ports and power button.

Figure 2: Detailed dimensions of the MINISFORUM N40 Mini PC from multiple angles.

Figure 3: Size comparison of the MINISFORUM N40 Mini PC with a smartphone, highlighting its ultra-compact design.
3. Setup
Connecting to Display
The MINISFORUM N40 Mini PC supports dual display output via its HDMI and VGA ports. Connect your monitor(s) to the corresponding ports on the back of the device.

Figure 4: Rear view of the Mini PC, illustrating the HDMI and VGA ports for display connections. The HDMI port supports up to 4K@60Hz UHD resolution.
Powering On
Connect the US Power adapter to the DC-in port on the Mini PC and then to a power outlet. Press the power button on the front of the device to turn it on. The N40 Mini PC supports Power On after Power Failure, meaning it can automatically restart after a power interruption.
Video 1: Official MINISFORUM N40 Windows 10 Pro Mini PC overview, demonstrating its compact size and connectivity options for home use.
Storage Expansion
The MINISFORUM N40 comes with 64GB eMMC storage. For additional storage, you can install an M.2 2242 SATA SSD (up to 1TB) or utilize the SD Card Slot (up to 128GB).

Figure 5: Internal view of the Mini PC, highlighting the M.2 2242 SATA SSD slot and SD card slot for storage expansion.
4. Operating Instructions
Operating System
The MINISFORUM N40 Mini PC comes pre-installed with Windows 10 Home. It also supports Linux systems, though specific Linux distributions may require additional configuration. The Celeron N4020 processor provides excellent performance for internet browsing and office applications.
Video 2: Official MINISFORUM N40 Mini PC promotional video, showcasing its various applications and compact form factor.
Connectivity
The Mini PC features Dual Band WiFi (802.11ac) for wireless internet access and a Gigabit Ethernet LAN (1000M) port for wired connections. It also includes multiple USB ports (2x USB 2.0, 1x USB 3.0) for connecting peripherals.

Figure 6: Illustration of the Mini PC's wireless and wired connectivity options, including Dual Band WiFi and Gigabit Ethernet.
Dual Display Support
Utilize the HDMI and VGA ports simultaneously to extend your desktop across two screens, enhancing productivity for work or providing an immersive viewing experience for entertainment.

Figure 7: The Mini PC connected to two monitors, demonstrating its dual display capabilities for various work and entertainment scenarios.
5. Maintenance
Fanless Design
The MINISFORUM N40 features a fanless design, which means it operates silently and has no moving parts for cooling. This design relies on efficient heat dissipation through its casing and internal heat sinks.

Figure 8: Internal view of the Mini PC, illustrating its fanless cooling system with heat dissipation elements.
System Recovery
In the event of an operating system crash or if the product cannot turn on, do not unplug the power adapter directly. Instead, press the reset jack with a pin for 30 seconds. The device will automatically restart.
6. Troubleshooting
| Issue | Solution |
|---|---|
| Operating system crashes or device won't turn on. | Press the reset jack with a pin for 30 seconds to force a restart. Do not unplug the power adapter directly. |
| Noisy operation. | The device is fanless and should be silent. Ensure it is placed in a well-ventilated area and not obstructed. If noise persists, contact support. |
| Linux system not supported. | Note that the N40 model specifically does not support Linux systems. Please ensure you are using a compatible operating system. |
7. Specifications
| Feature | Detail |
|---|---|
| Brand | MINISFORUM |
| Model | N40 |
| Processor | Intel Celeron N4020 (2.8 GHz) |
| RAM | 4 GB DDR4 |
| Internal Storage | 64 GB eMMC |
| Expandable Storage | M.2 2242 SATA SSD Slot (up to 1TB), SD Card Slot (up to 128GB) |
| Graphics Coprocessor | Intel UHD Graphics 600 |
| Max Screen Resolution | 3840x2160 Pixels |
| Wireless Type | 802.11ac (Dual Band WiFi) |
| Ethernet | 1000M LAN |
| USB Ports | 2x USB 2.0, 1x USB 3.0 |
| Video Output | HDMI & VGA |
| Operating System | Windows 10 Home |
| Item Weight | 1.39 pounds |
| Product Dimensions | 4.72 x 4.72 x 1.14 inches |
8. Warranty and Support
The MINISFORUM N40 Mini PC has obtained FCC, CE, ROSH, and C-TICK certifications, ensuring compliance with relevant safety and quality standards. For any product-related inquiries, technical assistance, or warranty claims, please contact MINISFORUM customer support through their official channels.