Hummlink HM-G2 Fanless Industrial Mini PC | Intel N3520, Dual LAN, RS232/RS485, Smart Parking System

The Hummlink HM-G2 is an ultra-reliable, fanless industrial mini PC engineered specifically for 24/7 continuous operation in automated car parking systems, toll booths, smart transportation, and harsh industrial automation environments. Powered by quad-core Intel Pentium N3520 or N2920 processors with an ultra-low 7.5W TDP, it features dual Intel i211 Gigabit LAN ports, two BIOS-switchable RS232/RS422/RS485 serial ports, a micro SIM card slot for 4G LTE cellular connectivity, and a rugged full-aluminum chassis designed for wall and DIN-rail mounting.

Key Features

• Fanless & Silent 24/7 Operation: Heavy-duty aluminum alloy chassis provides efficient passive heat dissipation with zero moving parts, dust resistance, and 0 dB silent industrial endurance.
• Dual Intel i211 Gigabit LAN: Equipped with two independent Intel i211-AT GbE RJ45 controllers, ensuring stable high-speed networking, firewall routing, and failover redundancy.
• BIOS-Switchable Serial Ports: 2x DB9 COM ports switchable between RS232, RS422, and RS485 modes directly in BIOS without opening the enclosure, perfect for barrier gates, PLCs, and ticketing machines.
• 4G LTE Cellular Support: Integrated push-type micro SIM card slot coupled with an internal Mini PCIe slot allows fast integration of 4G LTE cellular modules for remote telemetry and wireless failover.
• Dual Synchronous Display: Features 1x HDMI 1.4 and 1x VGA outputs supporting dual synchronous or extended display configurations for operator terminals and digital signage.
• Embedded Automation Ready: Built-in 256-level Watchdog timer, 8-bit GPIO interface, Auto Power On after power restoration, Wake-on-LAN (WOL), and PXE boot.
• Ultra-Low 7.5W Power Consumption: Energy-efficient quad-core architecture significantly cuts operational costs and thermal load in enclosed outdoor cabinets.

Target Applications

• Automated Car Parking Management & Barrier Gate Control
• Highway Toll Collection & License Plate Recognition (LPR)
• Industrial Automation, PLC Interfacing & SCADA Edge Gateways
• Self-Service Payment Kiosks & Ticketing Terminals
• Smart Transportation & Remote Telemetry Stations

Specifications

• Processor: Intel Pentium Quad-Core N3520 (2.17 GHz base, up to 2.42 GHz burst) / Intel Pentium Quad-Core N2920 (1.86 GHz base, up to 2.00 GHz burst), 7.5W TDP
• Memory: 1x DDR3L SO-DIMM Slot (Up to 8GB 1333/1600 MHz, 1.35V)
• Storage: 1x Full-size mSATA 3.0 SSD slot, 1x 2.5\" SATA HDD/SSD drive 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 (Synchronous & independent dual display)
• USB Ports: 1x USB 3.0, 3x USB 2.0
• Expansion Slots: 1x Mini PCIe (mSATA), 1x Mini PCIe (for Wi-Fi / 4G LTE module), 1x Micro SIM Slot (push-type)
• Industrial I/O: 8-bit GPIO terminal, Audio Out & Mic In jacks
• BIOS & Watchdog: 256-level Watchdog, Auto Power On, Wake-on-LAN (WOL), PXE boot
• Power Input: DC 12V (Lockable 5.5/2.5mm DC jack, AC power adapter included)
• Thermal Design: Fanless aluminum chassis, passive finned heatsink cooling
• Mounting Options: Wall mount bracket included, Desktop placement, DIN Rail compatible
• Operating Temperature: -20°C to +60°C (-4°F to 140°F)
• Supported Operating Systems: Windows 10, Windows 8, Windows 7, Linux Ubuntu, Debian
• Certifications: CE, FCC, RoHS

Package Contents

1x HM-G2 Industrial Mini PC, 1x DC 12V Power Adapter & AC Power Cord, 1x Wall Mount Bracket & Screws, External Wi-Fi Antennas (included with Wi-Fi option), and Quick Start Guide.

Shipping & Delivery

• Worldwide Express Shipping: Fast door-to-door delivery via DHL, FedEx, or UPS with real-time tracking.
• Dispatch Time: Standard orders dispatch within 1–3 business days. Bulk batch orders follow scheduled production lead times.
• Secure Industrial Packaging: Double-boxed, high-density shock-proof foam packaging ensures zero transit damage.

Warranty & Support

• 24-Month Limited Warranty: Comprehensive 24-month (2-year) factory warranty covering hardware defects under standard operating conditions.
• Lifetime Technical Support: Dedicated B2B engineering assistance for BIOS setup, serial communication protocols, and OS deployment.
• DOA Guarantee: Immediate priority replacement if any unit is diagnosed defective upon initial unboxing.

Frequently Asked Questions (FAQ)

Q: How do I switch the serial COM ports between RS232, RS422, and RS485?
A: You can switch each COM port's protocol directly in the BIOS setup utility under Advanced Chipset settings without opening the chassis or adjusting manual jumpers.

Q: Is the HM-G2 suitable for 24/7 continuous operation in outdoor toll or parking kiosks?
A: Yes. With fanless heat dissipation, wide operating temperature support (-20°C to +60°C), Auto Power On, and a hardware Watchdog timer, it is specifically designed for unattended, round-the-clock harsh deployments.

Q: Does the micro SIM card slot provide cellular data out of the box?
A: The onboard micro SIM slot works in conjunction with an internal Mini PCIe 4G LTE cellular module. Once a 4G module and SIM card are installed, the system connects directly to cellular networks.

Q: Can I order this Mini PC with RAM, SSD, and operating system pre-installed?
A: Yes, we provide both barebone units and fully configured models with tested DDR3L RAM and high-speed SSD storage, pre-loaded with Windows or Linux.

Q: Do you offer bulk discounts or OEM/ODM customizations for system integrators?
A: Yes. We support custom logo printing, customized BIOS splash screens, custom OS images, and tiered volume pricing. Contact our sales team for an official quote.