Introduction
Welcome to the user manual for your MINIX NEO J51-C8 Max Mini Computer. This guide provides essential information for setting up, operating, maintaining, and troubleshooting your device. Please read this manual thoroughly before using your mini PC to ensure proper functionality and longevity.
What's in the Box
Package Contents
- MINIX NEO J51-C8 Max Mini Computer
- VESA Mount
- Power Adapter
- HDMI Cable
- Wi-Fi Antennas (2)
- Mounting Bracket and Screws
Product Overview

Key Features
- Processor: Intel Jasper Lake Quad-core N5105 Processor (up to 2.9 GHz)
- Operating System: Pre-installed Windows 11 Pro
- Memory: 8GB DDR4 RAM (expandable up to 16GB)
- Storage: 512GB PCIe NVMe SSD (expandable up to 2TB via 2280 M.2 slot)
- Display Support: Triple 4K @ 60Hz display output via HDMI, Mini DisplayPort, and USB-C
- Connectivity: Dual 2.5G LAN, Wi-Fi 6 (802.11ax), Bluetooth 5.2
- Ports: USB 3.2 (up to 10Gbps), USB-C (video output, data transfer, optional power input)
- Design: Aluminum housing, VESA mount compatible
Front and Rear Panel


Triple Display Support
The MINIX NEO J51-C8 Max supports simultaneous output to up to three screens in superb 4K ultra high definition, utilizing its HDMI, Mini Display Port, and USB-C port.

Setup
Initial Setup
- Connect Antennas: Carefully screw the two Wi-Fi antennas into the designated ports on the rear of the mini PC.
- Connect Peripherals: Connect your USB keyboard and mouse to the available USB 3.2 ports on the front panel.
- Connect Display: Connect your monitor(s) using the provided HDMI cable to the HDMI port. For triple display, use the Mini DisplayPort and/or the USB-C port with compatible cables/adapters.
- Connect Power: Plug the power adapter into the DC 12V power jack on the rear of the mini PC, then plug the adapter into a power outlet.
- Power On: Press the power button located on the front panel of the mini PC. The device will boot up and display the MINIX logo on your screen.
- Windows 11 Pro Setup: Follow the on-screen instructions to complete the initial Windows 11 Pro setup, including language, region, and network configuration.
Operating Instructions
Basic Operation
Your MINIX NEO J51-C8 Max comes pre-installed with Windows 11 Pro, offering a familiar and intuitive user experience.
Internet Connectivity
- Wi-Fi: Ensure antennas are connected. Windows will guide you through connecting to a Wi-Fi network during initial setup or via the Network & Internet settings.
- Wired Ethernet: For a stable and fast connection, connect an Ethernet cable to one of the dual 2.5G LAN ports.
Expanding Storage and Memory
The device supports memory expansion up to 16GB DDR4 via two SODIMM slots and storage expansion up to 2TB via the 2280 M.2 slot (SATA 6.0Gbps). Refer to the detailed specifications for compatibility.
Maintenance
Care and Maintenance
- Cleaning: Use a soft, dry cloth to clean the exterior of the mini PC. Avoid liquid cleaners.
- Ventilation: Ensure proper airflow around the device. Do not block the ventilation holes.
- Software Updates: Regularly update Windows 11 Pro and device drivers to ensure optimal performance and security.
- Power Management: Use the provided power adapter. Unplug the device during electrical storms or when unused for extended periods.
Troubleshooting
Common Issues and Solutions
| Issue | Solution |
|---|---|
| No display output | Ensure all display cables (HDMI, Mini DP, USB-C) are securely connected to both the mini PC and the monitor. Verify the monitor input source is correctly selected. |
| Wi-Fi connectivity issues | Check that the Wi-Fi antennas are securely screwed into their ports. Ensure the device is within range of your Wi-Fi router. Restart the mini PC and your router. |
| Slow performance | Close unnecessary applications. Check for background processes. Ensure sufficient free storage space. Consider upgrading RAM or SSD if performance remains an issue. |
| USB-C port connection feels loose | Some cables may have a tighter fit. Ensure the cable is fully inserted. If issues persist, try a different USB-C cable. |
| BIOS reset after Windows update | If the BIOS settings, particularly boot order, are reset after a major Windows update, access the BIOS setup (usually by pressing DEL or F2 during boot) and reconfigure the boot order to prioritize your primary SSD. |
Specifications
Technical Specifications
| Feature | Detail |
|---|---|
| Model | NEO J51-C8 Max |
| Processor | Intel Celeron N5105 (2.9 GHz) |
| RAM | 8 GB DDR4 (expandable to 16GB) |
| Storage | 512 GB PCIe NVMe SSD (expandable to 2TB) |
| Graphics | Intel UHD Graphics |
| Operating System | Windows 11 Pro, Ubuntu 20.04 |
| Screen Resolution | 3840 x 2160 (4K) |
| Wireless Type | 802.11ax (Wi-Fi 6), 2.4 GHz Radio Frequency |
| USB Ports | 1x USB 2.0, 2x USB 3.0 |
| LAN Ports | Dual 2.5G LAN |
| Dimensions (LxWxH) | 5.51 x 5.51 x 1.57 inches |
| Item Weight | 1.19 pounds |
Support
Customer Support
For technical assistance or inquiries, please contact MINIX customer support:
- Amazon Support: Log in to your Amazon account, navigate to "Your Orders," and select "Ask Product Question" for your MINIX NEO J51-C8 Max.
- Official Website: Visit the official MINIX website for offline maintenance services and additional resources.
Warranty Information
Please refer to the product packaging or the official MINIX website for detailed warranty terms and conditions.





