Description

NUC42R-N42 VER1.2 Quad 2.5G Fanless Industrial Motherboard

A compact, fanless powerhouse featuring four Intel® 2.5GbE ports and Intel® Gemini Lake processing, engineered for high-bandwidth networking, industrial automation, and robust embedded applications.

📋 Product Overview

The NUC42R-N42 VER1.2 is a feature-rich, fanless industrial motherboard designed for networking-intensive and demanding embedded environments. Centered on the efficient Intel® Gemini Lake platform, its standout feature is the integration of four Intel® I225 2.5 Gigabit Ethernet ports, providing exceptional network throughput and reliability in a compact, rugged, and silent form factor.

🛠️ Key Features

✓Quad 2.5GbE Networking: Integrated four Intel® I225 controllers for high-speed, low-latency 2.5 Gigabit Ethernet connectivity.

✓Fanless & Rugged Design: Passive cooling ensures silent, maintenance-free operation and protection against dust and moisture in sealed systems.

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

✓Rich Industrial I/O: Dual configurable serial COM ports (RS232/RS485), 7x USB ports, and GPIO for versatile device integration.

✓Wide-Temperature Reliability: Engineered for stable operation from -10°C to +60°C in challenging environments.

✓Flexible Power & Display: Supports AT/ATX mode switching with 12V or 19V DC input. Offers HDMI or DisplayPort video output options.

✓Compact Form Factor: Ultra-compact 120mm x 120mm size ideal for space-constrained installations.

🔧 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 Output

1 x HDMI or 1 x DisplayPort (configurable option – verify specific board variant).

Audio

Integrated HD Audio via HDMI/DisplayPort. (Note: Dedicated 3.5mm audio jack may not be present on this network-focused variant).

🔌 Connectivity & I/O Ports

Network (LAN)

4 x Intel® I225 2.5 Gigabit Ethernet (2.5G/1G/100M/10M) RJ45 ports.

High-performance controllers ideal for firewalls, routers, network storage, and bandwidth-intensive applications.

USB Ports

4 x USB 3.0 ports

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

(Total 7 USB ports)

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

Network Controller: Features four Intel® I225 2.5GbE controllers. Ensure your network infrastructure (switches, cables) supports 2.5GbE for optimal performance. Drivers are required for full functionality in most operating systems.

Display Output Configuration: This model provides either an HDMI or a DisplayPort output as a configurable option. Confirm the specific video interface on your board variant before finalizing your display setup.

Audio Output: Primary audio is transmitted digitally via the HDMI or DisplayPort interface. A dedicated 3.5mm analog audio jack is not typically present on this network-optimized model.

Power Supply Requirement: The quad 2.5GbE ports can draw significant power. Use a high-quality, stable DC power adapter rated for 12V or 19V (±5%) with ample current capacity (recommended ≥ 90W).

Thermal Management (Fanless): While fanless, the board may generate more heat under full CPU and network load. Ensure the final enclosure provides adequate passive cooling, especially when operating near the maximum temperature rating.

Serial Port & GPIO: The COM ports default to RS232 but can be configured for RS485. GPIO pins provide flexible digital I/O; refer to the pinout diagram for correct wiring.