1. Introduction
This manual provides detailed instructions for the setup, operation, maintenance, and troubleshooting of your Topton Solid Firewall Mini PC H15. This high-performance mini PC is designed for various applications, including firewall, home server, and network appliance roles, featuring Intel Core Ultra 7 155H processors and extensive connectivity options.
2. Package Contents
Please check the package contents upon receipt. If any items are missing or damaged, contact your vendor immediately.
- Topton Solid Firewall Mini PC H15
- Power Adapter (DC-19V)
- External 4-pin fan (optional, included as gift)
- User Manual (this document)
3. Setup Guide
3.1 Physical Connections
Connect the necessary peripherals and power to your Mini PC as described below.





- Power Input: Connect the DC-19V power adapter to the DC-IN port.
- Network Connections: Utilize the 6x Intel 2.5G RJ45 LAN ports (ETH0-ETH5) for standard network connectivity. Depending on your model, you may also have optional SFP ports (2x10G SFP+, 4x10G SFP+, or 4x1G SFP) for high-speed fiber connections.
- Display Output: Connect your monitor(s) to the HDMI, DisplayPort (DP), or Type-C (Thunderbolt 4) ports. The device supports up to 3x 4K UHD video displays simultaneously.
- USB Devices: Connect USB peripherals to the 2x USB 3.2 Gen2 (10Gbps) ports or the 4x USB 2.0 ports. The Type-C port also supports Thunderbolt 4 (40Gbps).
- Console Port: Use the RJ45 CONSOLE port for serial console access, typically for initial setup or debugging of network operating systems.
- SIM Slots: Insert 5G or 4G SIM cards into the dedicated SIM_5G and SIM_4G slots for mobile broadband connectivity, if desired.
3.2 Internal Component Overview
For advanced users or upgrades, understanding the internal layout is beneficial.

| Item No. | Component | Description |
|---|---|---|
| 1 | PWR1 | Phoenix terminal |
| 2 | JGPIO | GPIO pin |
| 3 | SATA | SATA socket |
| 4 | SATA_PWR | SATA power pin |
| 5 | JUSB3PWR_SET1 | Power jumper pin for USB3.0 port |
| 6 | F_PANEL | Front panel switch pin |
| 7 | RST_GPIO_SEL1 | Function selection jumper pin of SW button |
| 8 | AUTO_ON | Auto power on jumper pin |
| 9 | CLR_CMOS | CMOS Clear Pin |
| 10 | TPM | TPM pin |
| 11 | SYS_FAN1/2 | System fan pin (front of FAN1/back of FAN2) |
| 12 | CPU_FAN1 | (Back) CPU fan pin |
| 13 | M.2_CNVI | M.2 E Key slot, support WiFi |
| 14 | M.2_PCIE | M.2 M Key for M.2 2280 PCIEx4 |
| 15 | M.2_4G/5G | M.2 B Key slot, support 4G LTE/optional 5G |
| 16 | MINIPCIE | Mini PCIE slot, support 4G LTE |
| 17 | PCIEx8 | PCIEx8 slot |
| 18 | SODIMM1/2 | 2 * SO-DIMM DDR5 memory slots |

3.3 Optional SFP Modules
The Mini PC supports various optional SFP modules for enhanced network flexibility.

- Intel 82599ES 2*10G SFP+ module: Provides two 10 Gigabit SFP+ ports.
- Intel X710-DA4 4*10G SFP+ module: Provides four 10 Gigabit SFP+ ports.
- Intel I350-AM4 4*1G SFP module: Provides four 1 Gigabit SFP ports.
4. Operating Instructions
4.1 Power On/Off
- Power On: Press the power button located on the side of the device.
- Power Off: Perform a graceful shutdown through your operating system. Alternatively, press and hold the power button for a few seconds to force a shutdown.
- Advanced Power Features: The device supports Auto Power On, Real-Time Clock (RTC) for scheduled power events, PXE Boot for network-based operating system deployment, and Wake-on-LAN for remote power-up. These features can typically be configured in the BIOS/UEFI settings.
4.2 BIOS/UEFI Access
To access the BIOS/UEFI settings, power on the device and repeatedly press the DEL or F2 key during the initial boot sequence. This allows configuration of boot options, hardware settings, and advanced features.
4.3 Operating System Installation
The Mini PC is compatible with various operating systems, including Windows, Linux distributions, and specialized firewall/router OS (e.g., Proxmox, pfSense, OPNsense). Prepare a bootable USB drive with your desired operating system and follow the on-screen instructions for installation. Ensure all drivers are installed for optimal performance.
4.4 Intel vPro / Endpoint Management Assistant (EMA)
The Intel i226-LM LAN port supports Intel vPro technology, enabling advanced remote management capabilities through Intel Endpoint Management Assistant (EMA).

Intel EMA allows for remote control and management of the host, including:
- Viewing a list of managed hosts.
- Performing endpoint actions such as wake-up, sleep, hibernate, shutdown, and restart.
- Direct remote control of the host via Remote Desktop.
- Accessing the BIOS interface for system repair or reinstallation, even if the system crashes.
5. Maintenance
5.1 Cooling
The Mini PC features a solid-built full aluminum shell with high tooth fins, acting as a passive heat-sink for efficient cooling. For scenarios requiring additional cooling, an external 4-pin fan is included as a gift and can be connected to the CPU_FAN1 or SYS_FAN1/2 headers on the motherboard (refer to Figure 3.7).
5.2 Cleaning
To maintain optimal performance and longevity, periodically clean the exterior of the Mini PC with a soft, dry cloth. Ensure the ventilation fins are free from dust accumulation. Do not use liquid cleaners or solvents.
5.3 Upgrades
The Mini PC is designed for easy upgrades:
- Memory: The device has 2xDDR5 SODIMM non-ECC laptop RAM slots, supporting up to 96GB at 4800/5600MHz.
- Storage: It supports 2x M.2 NVME/PCIEx4 2280 SSDs and 1x SATA 3.0 drive.
- Wireless Modules: It includes M.2 E_Key 2230 for CNVI WiFi, M.2_B Key for 4G/5G LTE, and a Mini PCIE slot for 4G LTE.
- Expansion Cards: The PCIEx8 expansion slot allows for the installation of optional SFP modules (refer to Section 3.3).
6. Troubleshooting
- No Power: Ensure the DC-19V power adapter is securely connected to both the Mini PC and a working power outlet.
- No Display: Verify that the monitor is correctly connected to the HDMI, DP, or Type-C port and is set to the correct input source. Try different display outputs or cables.
- Network Connectivity Issues: Check all Ethernet and SFP cable connections. Verify network settings in your operating system. Ensure the correct SFP modules are installed and recognized.
- System Crash/Unresponsive: If the system crashes, you can restart the host and enter the BIOS interface to attempt repair or reinstall the operating system.
- BIOS Reset: If you encounter issues after changing BIOS settings, locate the CLR_CMOS pin on the motherboard (Item 9 in Figure 3.6) and follow the motherboard's instructions to clear the CMOS settings.
7. Specifications
| Feature | Specification |
|---|---|
| Processor | Intel Core Ultra 7 155H (16 Cores, 22 Threads, 24M L3 Cache, Max Turbo 4.80 GHz, 28W TDP) |
| Graphics | Intel Arc Graphics max 2.25GHz |
| Memory | 2x DDR5 SODIMM slots, max 96GB 4800/5600MHz |
| Storage | 2x M.2 NVME/PCIEx4 2280 SSD, 1x SATA 3.0 |
| LAN Ports | 6x Intel 2.5G RJ45 LANs (5x i226-V + 1x i226-LM with Intel vPro) |
| Optional SFP | 1x PCIEx8 expansion slot for:
|
| Video Output | 1x HDMI, 1x DisplayPort (DP), 1x Type-C (Thunderbolt 4); supports 3x 4K UHD displays |
| USB Ports | 2x USB 3.2 Gen2 (10Gbps), 4x USB 2.0, 1x Type-C (Thunderbolt 4, 40Gbps) |
| Wireless Slots | 1x M.2 E_Key 2230 (CNVI WiFi), 1x M.2_B Key (4G/5G LTE), 1x Mini PCIE (4G LTE) |
| Features | AES-NI, ESXI, PVE, Watchdog, Auto power on, RTC, PXE boot, Wake-on-LAN |
| Chassis | Solid-built full aluminum shell (fanless design), optional external 4-pin fan included |
| Dimensions (W x D x H) | 165mm x 154mm x 78mm |
| Certification | CE, FCC, RoHS |


8. User Tips
- BIOS Tuning: For advanced users, explore the BIOS settings for performance tuning options, such as adjusting TDP levels for the CPU, if available.
- Optimal Cooling: While the Mini PC features a fanless design, for sustained high-load operations or in warmer environments, consider utilizing the included external 4-pin fan to optimize cooling performance.
- Network Configuration: When setting up as a firewall or router, carefully plan your network topology and configure the multiple LAN and SFP ports according to your specific requirements.
9. Warranty and Support
For warranty information, technical support, or service inquiries, please contact your original point of purchase or the manufacturer directly. Keep your purchase receipt and product serial number handy for faster service.