Hummlink HM-G4 Fanless Industrial Mini PC | Intel Core i5/i7, 9-36V Wide Voltage, Dual LAN, Machine Vision

The Hummlink HM-G4 is a heavy-duty, high-performance fanless industrial mini PC engineered for 24/7 continuous operation in mission-critical industrial automation, machine vision, and wide-voltage edge computing. Powered by 8th Gen Intel Core i7-8550U or Core i5-8250U quad-core processors (8 threads, up to 4.0 GHz) with dual DDR4 memory slots supporting up to 32GB RAM, the HM-G4 is housed in an ultra-rugged finned aluminum enclosure with wide-voltage DC 9V~36V input, dual Intel i211 Gigabit Ethernet, 2x BIOS-switchable COM ports, an extensive 8x USB port array, and a multi-pin industrial Phoenix GPIO terminal.

Key Features

• Powerful Core i7/i5 Processing & 32GB RAM: Equipped with quad-core/8-thread Intel Core i7-8550U or i5-8250U processors and dual SO-DIMM DDR4 channels (up to 32GB), delivering workstation-class responsiveness for data-intensive SCADA, AI inference, and machine control.
• Wide Voltage Input (DC 9V~36V): Built with an industrial wide-voltage DC power design supporting both a lockable DC barrel jack and a 2-pin Phoenix terminal block, preventing power fluctuations in factory and vehicular environments.
• Dual Intel i211 Gigabit Ethernet: Dual independent Intel GbE controllers ensure ultra-stable, deterministic industrial networking, OT/IT network isolation, and link failover redundancy.
• BIOS-Selectable Multi-Mode COM Ports: 2x DB9 serial ports switchable between RS232, RS422, and RS485 modes directly in BIOS without opening the chassis, ideal for long-distance RS485 sensor buses and CNC interfacing.
• Massive 8x USB Expansion: Features 4x high-speed USB 3.0 ports on the front and 4x USB 2.0 ports on the rear, supporting numerous cameras, barcode scanners, and peripheral controllers simultaneously.
• Integrated Multi-Pin GPIO Terminal: Industrial Phoenix terminal block with isolated digital input/output pins for external relay triggering, safety switches, and automation sequencing.
• Heavy-Duty Fanless Heat Dissipation: Thick extruded aluminum heatsink body dissipates heat passively with 0 dB silent operation, IP40 dust protection, and 24/7 reliability in demanding harsh factory conditions.
• Enterprise Industrial BIOS: Hardware Watchdog timer, Auto Power On after power restoration, RTC wake-up, Wake-on-LAN (WOL), and PXE boot.

Target Applications

• Factory Automation, Production Line Monitoring & CNC Equipment
• Machine Vision & Multi-Camera Quality Inspection Stations
• SCADA Systems, Edge AI Gateways & Industrial IoT Hubs
• Vehicle Computing, Heavy Fleet Telematics & Marine Automation
• Self-Service Outdoor Terminals, Smart Lockers & Bank ATMs

Specifications

• Processor Options: Intel Core i7-8550U (4C/8T, 1.80 GHz up to 4.00 GHz, 8MB Cache) / Intel Core i5-8250U (4C/8T, 1.60 GHz up to 3.40 GHz, 6MB Cache), 15W TDP
• Memory: 2x DDR4 SO-DIMM Slots (Dual Channel, supports up to 32GB 2133/2400 MHz)
• Storage: 1x Full-size mSATA 3.0 (6Gb/s) SSD slot + 1x 2.5\" SATA 3.0 (6Gb/s) HDD/SSD bay
• Network: 2x Intel i211-AT Gigabit Ethernet (10/100/1000 Mbps RJ45)
• Serial Ports: 2x DB9 COM (BIOS switchable RS232 / RS422 / RS485)
• Display Outputs: 1x HDMI 1.4 + 1x VGA (Simultaneous dual display output)
• USB Ports: 4x USB 3.0 + 4x USB 2.0 (Total 8x USB ports)
• Industrial GPIO: Multi-pin Phoenix terminal block (Isolated Digital Input + Output)
• Wireless & Cellular: 1x Half-size Mini PCIe (for Wi-Fi/BT), 1x Full-size Mini PCIe (for 4G LTE), 1x Front SIM Slot (push-type)
• Audio: Intel HD Audio, 1x 3.5mm Mic In + 1x 3.5mm Speaker Out
• Power Input: DC 9V~36V wide voltage (Lockable DC Jack + 2-Pin Phoenix Terminal; AC 100-240V power adapter included)
• Chassis & Thermal: Heavy-duty finned aluminum alloy passive cooling chassis
• Mounting: Integrated wall / flange mount brackets, Desktop placement
• Dimensions & Weight: 228 x 150 x 83 mm (Package: 320 x 220 x 85 mm), Weight ~3.5 kg
• Operating Temperature: 0°C to +60°C (Storage: -20°C to +80°C)
• Operating Systems: Windows 10 Pro, Windows 11, Linux Ubuntu, Debian
• Certifications: CE, FCC, RoHS

Package Contents

1x HM-G4 Industrial Mini PC, 1x Industrial AC 100–240V Power Adapter & Power Cord, 1x Wall Mount Hardware & Screw Bag, 2x External High-Gain Wi-Fi Antennas (included with Wi-Fi option), and Quick Start Guide.

Shipping & Delivery

• Worldwide Express Shipping: Door-to-door delivery via DHL, FedEx, or UPS with full real-time tracking.
• Dispatch Time: Standard sample orders dispatch within 1–3 business days. Batch production orders follow confirmed scheduling.
• Heavy-Duty Industrial Packaging: Double-walled corrugated outer carton and custom molded high-density foam ensure complete protection during transit.

Warranty & Support

• 24-Month Limited Warranty: Comprehensive 24-month (2-year) factory warranty on hardware components with a verified failure rate <1%.
• Lifetime Technical Support: Dedicated engineering support for BIOS configuration, serial port protocols, GPIO libraries, and OS deployment.
• DOA Priority Guarantee: Immediate priority replacement if any unit is diagnosed defective upon initial delivery.

Frequently Asked Questions (FAQ)

Q: What is the power input requirement for the HM-G4?
A: The HM-G4 features a wide-voltage DC 9V~36V power input supporting both standard barrel DC jacks and a rugged 2-pin Phoenix terminal block, making it ideal for vehicular systems and unstable factory power grids.

Q: Can the memory be expanded up to 32GB?
A: Yes. The HM-G4 is equipped with dual DDR4 SO-DIMM slots, supporting up to 32GB (2x 16GB) of dual-channel high-speed DDR4 memory for data-heavy workloads and virtual machines.

Q: How do I switch the serial COM ports between RS232, RS422, and RS485?
A: Both COM ports can be switched between RS232, RS422, and RS485 protocols directly in the BIOS setup menu under Advanced Chipset settings without opening the hardware chassis.

Q: Does the unit support Auto Power On after an electrical outage?
A: Yes, Auto Power On after AC power restoration is natively supported in the BIOS, along with a configurable hardware Watchdog timer and Wake-on-LAN (WOL) for remote unattended operations.

Q: Do you offer bulk discounts or OEM/ODM customizations for system integrators?
A: Yes, we provide custom logo laser engraving, custom BIOS boot screens, customized I/O configurations, and volume discounts. Contact our sales engineering team for a project quotation.