UDPTCP Celeron N5105 Barebone Firewall Mini PC Review: Who It Fits and Who Should Skip It
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This udptcp micro firewall appliance review focuses on the UDPTCP Celeron N5105 Barebone Firewall Mini PC. It is a networking device built for home labs and small offices. The unit stands out for its four Intel i226-V 2.5GbE LAN ports. These provide high-speed connectivity for routing tasks. It uses an Intel Celeron N5105 quad-core processor. This chip handles encryption and packet inspection efficiently. You get a fanless aluminum chassis for silent operation. The system is sold without RAM or storage. This barebone design lets you choose compatible components. It supports various BSD-based router systems out of the box.
What stands out
- Four Intel i226-V 2.5GbE LAN ports for fast networking
- Intel Celeron N5105 processor with AES-NI hardware support
- Fanless aluminum alloy chassis for silent, industrial-grade cooling
- Supports pfSense, OPNsense, OpenWrt, and ESXi systems
- Dual display output via HDMI 2.0 and DisplayPort 1.4
Who it fits
Good fit for
This mini PC suits network administrators and home lab enthusiasts who need a dedicated firewall or router. If you require multiple high-speed LAN connections, the four 2.5GbE ports are ideal. The Intel Celeron N5105 with AES-NI support handles encrypted traffic well. It fits users who prefer silent operation and want to install their preferred open-source router software like pfSense or OPNsense. You need to buy RAM and SSDs separately to complete the build.
Who should skip it
You should look elsewhere if you need a ready-to-use computer. This unit is a barebone appliance with no installed RAM or SSD. You must purchase these components separately to get it running. It also lacks a built-in display or keyboard. If you want a simple plug-and-play desktop for web browsing or office work, this is not the right choice. It is designed specifically for networking roles, not general computing tasks.
Verdict: The UDPTCP Celeron N5105 is a specialized, silent firewall appliance with four 2.5GbE ports. It is perfect for network-focused builds but requires you to add your own memory and storage.
Key specs explained for you
Processor: Intel Celeron N5105
This quad-core chip runs up to 2.90 GHz. It handles light routing tasks efficiently without generating much heat. You benefit from stable performance for firewall duties. Compare this to faster chips if you plan to run heavy virtual machines. For basic network security, this processor provides ample power for most home lab setups.
Ethernet Ports: 4x 2.5GbE
Four ports use Intel i226-V chips for fast data transfer. These exceed standard Gigabit speeds for internal network traffic. You gain flexibility to separate WAN, LAN, and management connections. Compare this to single-port mini PCs that limit your network topology. This setup suits users who need dedicated links for different network segments.
Graphics: Intel UHD Graphics
Integrated graphics support dual 4K displays via HDMI and DisplayPort. This allows you to monitor system status on external screens. It is not designed for gaming or heavy video editing. Compare this to discrete graphics cards if you need media playback. For a firewall, this output is sufficient for local management interfaces.
Memory Type: DDR4
The system uses DDR4 slots for system memory. You can install up to 16GB of RAM in the barebone version. This supports multiple services running simultaneously in a home lab. Compare this to older DDR3 systems for better efficiency. Ensure you purchase compatible modules since the unit ships without installed memory.
Storage Capacity: Barebone
The unit includes one M.2 NVMe slot and one 2.5-inch SATA bay. You must buy your own SSD or hard drive. This lets you choose storage based on your capacity needs. Compare this to pre-built units with fixed storage. It offers flexibility for installing router OSes like pfSense or OPNsense.
Design and build overview
According to the listing, the UDPTCP Celeron N5105 Barebone Firewall Mini PC features a solid aluminum alloy shell. The exterior is finished in black with an industrial-grade aesthetic. This material choice suggests durability and helps with passive heat dissipation. The listing notes a three-sided cooling design, which supports the claim that the unit is built for continuous operation. This robust construction is intended for environments where reliability matters more than compact aesthetics.
The physical layout prioritizes connectivity over user interaction. There are no front-facing controls or status lights mentioned. Instead, the focus is on the rear I/O panel. You get four Intel i226-V 2.5GbE LAN ports, which are essential for its role as a firewall appliance. Additional ports include two USB 2.0, two USB 3.0, an HDMI 2.0, and a DisplayPort 1.4. There is also an RJ45 COM console port for management, along with M.2 and SIM slots for expansion.
This configuration means the device is not designed for desktop use. You will not use it as a primary computer with a mouse and keyboard. The lack of a display or easy access buttons indicates it is meant to be mounted in a rack or placed in a server closet. The barebone form factor, meaning no RAM or SSD is installed, allows you to customize storage and memory to fit your specific network load. The build supports 24/7 operation, making it suitable for home labs or small office networks that require stable, low-power networking hardware.
Setup and everyday use guide
Setting up this barebone unit requires you to provide your own memory and storage. The listing specifies NO RAM NO SSD for the base configuration. You must install dual DDR4 RAM modules into the two available slots. The maximum supported memory is 16GB. For storage, you can choose between one M.2 NVMe 2280 SSD or one 2.5-inch SATA drive. This flexibility lets you select components that match your specific throughput needs. The device does not come with an operating system pre-installed. You will need to install a compatible router or virtualization platform yourself. The manufacturer lists several tested systems, including pfSense Plus, OPNsense, OpenWrt, Proxmox, and ESXi. You should ensure your chosen software version is supported by the Intel i226-V network drivers. Daily operation relies on the Celeron N5105 processor. It runs quietly with a built-in fan. The unit supports 24/7 industrial-grade operation. You can enable features like Wake-on-LAN and auto power-on for remote management. The four 2.5GbE ports handle high-speed data transmission with lower power consumption. You can also connect external displays via HDMI 2.0 and DisplayPort 1.4. This supports dual 4K monitors if you need a local interface. The device includes USB ports and a COM console port for direct access. You benefit from hardware-accelerated encryption with AES-NI support. This keeps network traffic secure without slowing down the processor. The aluminum shell helps dissipate heat during long runs. You get a one-year warranty for peace of mind. This setup is ideal for users who want full control over their network environment.
Before You Buy This Firewall PC
You need to supply your own RAM and storage. The listing shows a barebone configuration with no installed memory or SSD. You must purchase dual DDR4 modules separately. The unit supports up to 16GB of RAM across two slots. You also need to add an M.2 NVMe SSD or a 2.5-inch SATA drive for your operating system. Check compatibility with your chosen router software before buying. The listing notes that some system suppliers may not have updated drivers yet. You should install the latest versions of pfSense, OPNsense, or OpenWrt. This device fits well alongside other small form factor computers for home labs. It is not a general-purpose desktop. You should skip it if you need a ready-to-use office machine. It is designed for dedicated networking tasks. Ensure your case placement allows for adequate airflow. The aluminum shell helps with cooling, but ventilation remains important for 24/7 operation.
Check before you buy
- Buy separate DDR4 RAM and SSD storage for the barebone unit
- Verify driver support for your chosen router OS like pfSense or OPNsense
- Ensure you have space for two DDR4 modules and one NVMe or SATA drive
- Confirm the device fits your network topology and power requirements
The product at a glance
UDPTCP Celeron N5105 Barebone Firewall Mini PC
Best for: Building custom router systems with four 2.5G ports
- Processor
- Intel Celeron N5105
- Installed RAM
- Barebone
- Storage Capacity
- Barebone
- Memory Type
- DDR4
- Graphics
- Intel UHD Graphics
- Ethernet Ports
- 4x 2.5GbE
View on Amazon: UDPTCP Celeron N5105 Barebone Firewall Mini PC Affiliate link
This barebone firewall appliance uses an Intel Celeron N5105 processor and four Intel i226-V 2.5GbE ports. It supports AES-NI for hardware encryption and runs popular router OSs like pfSense and OPNsense. You get dual display outputs and multiple storage slots. It is built for continuous network security tasks.
Pros
- Four Intel i226-V 2.5GbE LAN ports
- Intel Celeron N5105 with AES-NI support
- Dual display output via HDMI 2.0 and DP 1.4
- Supports pfSense, OPNsense, and ESXI
Cons
- Sold as a barebone unit with no RAM or SSD
- Includes only one M.2 NVMe slot
- Requires external power and memory installation
Good fit if
- You need four 2.5G LAN ports for a home lab
- You want to run pfSense or OPNsense
- You prefer hardware encryption via AES-NI
Skip if
- You need a ready-to-use system with RAM included
- You require more than four Ethernet connections
- You want a pre-installed operating system
Verdict: UDPTCP Celeron N5105 4-Port Firewall Appliance is a solid base for network engineers who need four 2.5G ports and hardware encryption support. It fits users building custom router systems.
Specifications side by side
| Spec | UDPTCP Celeron N5105 Barebone Firewall Mini PC |
|---|---|
| Processor | Intel Celeron N5105 |
| Installed RAM | Barebone |
| Storage Capacity | Barebone |
| Memory Type | DDR4 |
| Graphics | Intel UHD Graphics |
| Ethernet Ports | 4x 2.5GbE |
| Use | Firewall |
| Networking | 2.5G LAN |
| Form Factor | Barebone |
| Size | No RAM/No SSD |
| Color | Black |
| Model | BK-N5105-4L |
Frequently asked questions
Does this mini PC come with RAM and an SSD installed?
No, it is sold as a barebone unit. The listing explicitly states it has NO RAM and NO SSD. You must purchase and install dual DDR4 memory modules and your own storage drive separately before the system can boot.
What processor powers this firewall appliance?
It uses an Intel Celeron N5105 chip. This quad-core processor runs at speeds up to 2.90 GHz. It is designed to handle light routing tasks efficiently while keeping power consumption and heat generation low for continuous operation.
How many network ports does this device have?
The UDPTCP model features four 2.5GbE LAN ports. These are Intel i226-V controllers that provide high-speed connectivity. This setup is ideal for building custom router systems that require multiple gigabit connections for different network segments.
Is this device suitable for home lab networking?
Yes, it is well-suited for home labs and small offices. The compact form factor and four 2.5G ports allow you to create a robust network core. It fits users who need a dedicated base for firewall duties without taking up much space.
What is the maximum RAM capacity supported?
The unit supports up to 16GB of RAM. You must install dual DDR4 modules into the two available slots. Since it is a barebone system, you are responsible for selecting the correct memory type and capacity to reach this limit.
What does the model number BK-N5105-4L indicate?
The model number identifies the specific configuration. The N5105 refers to the Intel Celeron processor. The 4L indicates the presence of four LAN ports. This specific black-colored unit is designed for network engineers building custom router systems.