Description

NUC42D-N22 VER1.2 Fanless Industrial Motherboard

A compact, fanless, and ruggedized motherboard powered by Intel® Gemini Lake processors, designed for reliable 24/7 operation in challenging environments such as industrial automation, digital signage, and embedded systems.

📋 Product Overview

The NUC42D-N22 VER1.2 is a high-performance, fanless embedded motherboard built around the energy-efficient Intel® Gemini Lake platform. Its compact size, wide-temperature operation, rich I/O, and fanless design make it an ideal solution for space-constrained, silent, and dust-sensitive applications requiring dependable long-term operation.

🛠️ Key Features

✓Fanless Design: Passive cooling enables silent operation and protects against dust and moisture in sealed enclosures.

✓Power-Efficient CPU: Integrated Intel® Celeron J4125 quad-core processor (2.0GHz), compatible with full Intel® Gemini Lake series.

✓Rich Connectivity: Dual Gigabit LAN, 7x USB ports, and dual serial COM ports for versatile industrial I/O.

✓Wide-Temperature Operation: Reliable performance from -10°C to +60°C for harsh environmental conditions.

✓Flexible Display Options: Supports configurations with HDMI + VGA or dual HDMI outputs.

✓Dual Power Mode: Supports AT/ATX mode switching and accepts flexible 12V or 19V DC input.

✓Industrial Control Features: Includes GPIO and a 256-level hardware Watchdog timer for system reliability.

🔧 Core System Specifications

CPU

Integrated Intel® Celeron J4125 Quad-Core Processor (2.0GHz). Compatible with the full Intel® Gemini Lake platform series.

Chipset

Integrated Intel® SOC (System-on-Chip) Platform

Memory (DDR4)

1 x SO-DIMM slot, Single Channel DDR4 2400MHz, supports up to 16GB

Storage

1 x mSATA 3.0 interface

1 x SATA 3.0 interface (for 2.5″ HDD/SSD)

Operating System

Windows 10, Linux

Graphics

Integrated Intel® UHD Graphics 600 (Gemini Lake)

🎥 Display & Audio Interfaces

Display Outputs

Configuration A: 1 x HDMI, 1 x VGA

Configuration B: Dual HDMI (specific variant)

(Supports dual independent displays)

Audio Codec

Realtek ALC262/662/897 HD Audio

Audio Ports / Features

1 x 3.5mm combo audio jack (supports Mic-in/Line-out)

1 x 4-pin header for external amplifier (reserved)

🔌 Connectivity & I/O Ports

USB Ports

4 x USB 3.0 ports

3 x USB 2.0 ports (including one via 1x4pin header)

(Total 7 USB ports)

Network (LAN)

2 x Gigabit Ethernet (10/100/1000 Mbps) RJ45 ports.

(Optional single LAN configuration available)

Serial Ports (COM)

2 x RS232 (DB9 connectors).

Optional: Can be configured to support 2 x RS485.

Expansion Slots

1 x Mini-PCIe slot (supports Wi-Fi or 4G LTE modules)

1 x mSATA slot (for storage)

Fan Interface

Board is fanless by design. Includes 1 x 4-pin CPU fan header (reserved for optional active cooling).

GPIO

Supports 4-channel input & 4-channel output GPIO

Watchdog Timer

Hardware reset function (256 levels, 0~255 seconds)

⚡ Power & Electrical Specifications

Input Voltage

DC 12V or 19V ±5% (Dual input voltage support)

Power Mode

Supports AT and ATX mode switching for flexible power management.

Cooling System

Fanless passive heatsink design for silent, maintenance-free, and dust-resistant operation.

🌎 Environmental & Physical Specifications

Operating Temperature

-10°C to +60°C (Wide-temperature operation for industrial environments)

Storage Temperature

-20°C to +70°C

Operating Humidity

5% to 95% RH (non-condensing)

Dimensions (Board)

120mm × 120mm (Ultra-compact form factor, 4.7″ x 4.7″)

⚠️ Important Notes

CPU & Platform: This motherboard features a soldered Intel® Celeron J4125 processor. It is compatible with the Gemini Lake platform architecture for software and driver purposes.

Memory Specifications: Supports DDR4 SO-DIMM memory only. Ensure the module is 1.2V and compatible with 2400MHz speed for optimal stability.

Power Supply Selection: Use a high-quality, stable DC power adapter rated for 12V or 19V (±5%) with sufficient current capacity (recommended ≥ 60W). Ensure correct polarity.

Thermal Considerations (Fanless Operation): The fanless design relies on passive convection. For reliable operation at the upper end of the temperature range (above 50°C) or in sealed enclosures, ensure adequate external airflow or heatsinking is provided to the system chassis.

Display Configuration: Verify the specific display output configuration (HDMI+VGA or Dual HDMI) of your board variant before planning your setup.

Serial Port Configuration: The default COM ports are RS232. If RS485 functionality is required, specify this during ordering or consult technical support for configuration instructions.