GMKtec G3 PLUS Review: A Quiet, Dual-4K Mini PC for Office and Server Use
The GMKtec G3 PLUS is a compact, well-connected mini PC that delivers reliable performance for everyday computing, dual-screen office work, and light server duties, though its 8GB RAM and integrated graphics have clear limits.
By Elvis Dicki
Updated October 20, 2026
In the world of compact computing, the GMKtec G3 PLUS positions itself as a versatile solution for users who need a capable desktop without the bulk. This mini PC, powered by an Intel Core i3-10110U processor and equipped with 8GB of RAM and a 256GB SSD, is designed for tasks ranging from web browsing and office productivity to serving as a quiet home server or media center. It’s a device that prioritizes connectivity and space efficiency, offering dual 4K display support, fast 2.5GbE networking, and the latest WiFi 6 and Bluetooth 5.2. For those seeking a reliable, low-profile computer for general use, the GMKtec G3 PLUS presents a compelling package, though its specifications clearly define its boundaries.
This review analyzes the GMKtec G3 PLUS based on its published specifications, design, and aggregated owner feedback to determine where it excels and where potential buyers might need to look elsewhere. We will examine its performance for everyday tasks, its extensive port selection, its suitability for 24/7 operation, and its limitations in more demanding scenarios like heavy multitasking or modern gaming.
GMKtec Nucbox G3 Pro Mini PC Intel Core i3-10110U
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GMKtec G3 PLUS at a Glance
| Specification | Detail |
|---|---|
| Processor | Intel Core i3-10110U (2.1 GHz – 4.1 GHz) |
| Memory | 8GB DDR4 3200MHz (Dual Channel) |
| Storage | 256GB M.2 2242 SATA SSD + Secondary M.2 2280 NVMe Slot |
| Graphics | Integrated Intel UHD Graphics (1000MHz) |
| Video Output | Dual HDMI 2.0 (4K @ 60Hz) |
| Networking | WiFi 6 (802.11ax), Bluetooth 5.2, 2.5GbE RJ45 (Intel i226) |
| Ports | 4x USB 3.2, 1x 3.5mm Audio Jack, 1x DC Power |
| Operating System | Windows 11 Pro |
| Cooling | Upgraded Cooling Fan with Thermal Paste |
| Dimensions | 4.48 x 4.17 x 1.67 inches |
Design and Build
The GMKtec G3 PLUS adheres to the classic mini PC form factor, with a compact black chassis measuring just over four inches square and less than two inches tall. This small footprint is a key selling point, allowing it to be easily tucked behind a monitor, mounted on a VESA bracket (included), or placed discreetly on a desk. The build quality, as noted in owner feedback, is described as good, contributing to a product that feels solid for its size and purpose. The design is purely functional, with ventilation likely integrated to work with the upgraded cooling system that GMKtec highlights. This focus on thermal management, including an upgraded fan and thermal paste, is aimed at ensuring quiet operation, a feature repeatedly mentioned by owners who use it as a always-on server or in quiet office environments. The unit’s light weight makes it highly portable, potentially useful for users who need a basic computing setup that can travel.
Performance and Features
Processor and Everyday Performance
At the heart of the G3 PLUS is the Intel Core i3-10110U, a dual-core, four-thread processor from Intel’s Comet Lake generation. According to the manufacturer, its key advantage lies in strong single-core performance, with a boost clock up to 4.1 GHz, making it well-suited for responsive web browsing, office applications, and other lightly-threaded tasks. The inclusion of Hyper-Threading also provides an edge in light multitasking and productivity workloads over some competing chips. Paired with 8GB of DDR4 RAM in a dual-channel configuration and a SATA SSD, the system is configured for snappy boot times and general responsiveness for its intended use cases. It is not designed for heavy video editing, 3D rendering, or scientific computing, but for the core tasks of document work, email, media playback, and web-based applications, it provides capable performance.
Connectivity and Ports
This is arguably the strongest area of the GMKtec G3 PLUS. It offers a rich selection of modern connections that surpass many standard desktops. For displays, it features two HDMI 2.0 ports, each capable of driving a 4K monitor at 60Hz, enabling an efficient dual-screen office or productivity setup. For peripherals and storage, there are four USB 3.2 ports, offering fast data transfer speeds. Networking is particularly robust, featuring both the latest WiFi 6 standard for high-speed wireless connectivity and a 2.5 Gigabit Ethernet port (Intel i226). This 2.5GbE port is a standout feature, offering up to two and a half times the bandwidth of standard Gigabit Ethernet, which is beneficial for fast file transfers within a home network, network-attached storage (NAS) access, or server applications. Bluetooth 5.2 ensures stable connections to wireless keyboards, mice, and audio devices.
Graphics and Media Capabilities
The integrated Intel UHD Graphics are sufficient for its designed roles. It supports 4K video playback at 60Hz and includes AV1 decoding, making it competent for streaming high-resolution video from services like YouTube or Netflix. It can connect to a projector or television for use as a home theater PC (HTPC). However, as an integrated solution, it is not intended for demanding modern 3D gaming. Owner feedback suggests it can handle older titles or light emulation reasonably well, but graphically intensive games will struggle. Its role is firmly in the realm of media consumption and basic display output, not gaming or GPU-accelerated creative work.
Software and Security
The GMKtec G3 PLUS comes pre-installed with Windows 11 Pro, providing a familiar environment for most users and broad software compatibility right out of the box. The Pro version includes additional features useful in business environments. The manufacturer also lists compatibility with various Linux distributions, including Ubuntu, Proxmox, and ESXi, making it a candidate for home lab projects, firewalls, or servers. However, some owner reviews indicate that achieving full functionality—like dual-screen support or HDMI audio—on Linux may require additional driver work or specific builds. Built-in security features include standard Windows offerings like Defender and Hello, alongside network management features like Wake-on-LAN, PXE Boot, and Auto Power On, which are valuable for remote server management.
Setup, Support and Ownership
Setup is described by owners as straightforward, taking only minutes to get Windows 11 running. The package includes all necessary cables: a power adapter, an HDMI cable, and a VESA mount with screws for monitor attachment. One of the key ownership benefits is the storage expansion capability. The system has two M.2 slots: one occupied by the 256GB SATA SSD and a second, empty M.2 2280 slot that supports faster NVMe PCIe drives for additional storage. This allows users to significantly increase capacity or speed. The 8GB of RAM is soldered, however, which is a fixed limitation. For support, GMKtec offers a one-year limited warranty covering defects in design and workmanship. The company mentions a professional after-sales team, though the specifics of their response times or support channels are not detailed in the provided data.
What Owners Say
Owner sentiment for the GMKtec G3 PLUS is largely positive, reflected in its overall rating distribution where the majority of reviews are five-star. Users frequently praise its compact size, quiet operation, and overall value for basic computing tasks. Many highlight its effectiveness as a Plex media server, a general web interface machine, or a discreet office PC. The fast 2.5GbE networking is appreciated by those using it for network duties. Some users have successfully used it for light gaming and emulation of older titles. On the critical side, the primary concerns mentioned relate to the limitations of the 8GB RAM for more intensive multitasking and the challenges some faced with Linux compatibility, including issues with dual-display support and audio over HDMI. A small percentage of reviews mention quality control issues, but these appear to be in the minority based on the rating distribution.
Pros and Cons
Pros
- Extensive connectivity with dual 4K HDMI, four USB 3.2 ports, and WiFi 6
- High-speed 2.5 Gigabit Ethernet for fast networking
- Compact, space-saving design with VESA mount included
- Quiet operation due to upgraded cooling system
- Easy storage expansion via a second M.2 NVMe slot
- Comes preloaded with Windows 11 Pro for quick setup
- Good value for basic computing and server tasks
Cons
- Limited to 8GB of non-upgradable RAM
- Integrated graphics not suitable for modern gaming
- Linux compatibility may require extra configuration
- Processor is a previous-generation dual-core design
- Primary storage is a SATA SSD, not the faster NVMe type
- Potential for driver or quality control issues based on some feedback
Who Should Buy It (and Who Should Skip It)
The GMKtec G3 PLUS is an ideal choice for users seeking a secondary computer, a dedicated home theater PC, or a quiet, low-power server for tasks like network storage (with added drives), a Plex server, or a lightweight home lab node. It’s excellent for office workers who need a reliable machine for email, documents, and web apps on one or two monitors. Students or remote workers needing a compact, portable desktop will also find it suitable. Its features make it a good fit for digital signage or as a kiosk computer.
This mini PC is not the right choice for power users, gamers, or creative professionals. Anyone who regularly runs virtual machines, edits high-resolution video, plays demanding PC games, or needs to keep dozens of browser tabs and applications open simultaneously will find the 8GB RAM and dual-core processor limiting. Users who require guaranteed out-of-the-box compatibility with Linux for all features, including dual displays, might want to consider other platforms known for better Linux support. For more powerful mini PC options, readers can explore our guides on gaming-focused mini PCs or AI-capable mini PCs.
Final Verdict
The GMKtec G3 PLUS successfully delivers on its core promise: providing a capable, well-connected, and quiet mini PC for everyday computing and light server duties. Its strengths are clear in its modern port selection, dual 4K support, and surprisingly fast 2.5GbE networking, all packed into a chassis that can hide almost anywhere. For users whose needs align with web browsing, office productivity, media streaming, and basic server functions, it offers strong value and convenience. The inclusion of Windows 11 Pro and straightforward expandable storage are significant bonuses.
However, its limitations are equally clear and define its niche. The 8GB of fixed RAM and older dual-core processor are the defining constraints that prevent it from being a general-purpose powerhouse. It is a specialist, not a generalist. If your computing demands are moderate and you prioritize a small, quiet, and connected form factor—whether for a clean desk setup, a living room media box, or a network appliance—the GMKtec G3 PLUS is a compelling option worth serious consideration. For those needing more multitasking headroom or gaming performance, other mini PCs like the Geekom A5 or those featured in our mini PCs category may be more appropriate.
FAQs
Can the RAM in the GMKtec G3 PLUS be upgraded?
No, based on the provided specifications, the 8GB of DDR4 RAM is soldered onto the motherboard and is not user-upgradable. This is a fixed configuration, so buyers should be confident that 8GB is sufficient for their intended use before purchasing.
Is this mini PC good for gaming?
The GMKtec G3 PLUS is not designed for modern 3D gaming. Its integrated Intel UHD Graphics lack the power for demanding titles. However, owner feedback suggests it can handle older PC games (like those from a decade ago) and light emulation reasonably well. For any serious gaming, a system with a dedicated GPU is necessary.
Does it work well with Linux?
The manufacturer lists compatibility with Linux distributions like Ubuntu and Proxmox, and it is marketed for use as a firewall or server. However, some owner reviews indicate that achieving full functionality, such as dual-display support and HDMI audio output, may require additional driver troubleshooting or using specific OS builds provided by GMKtec. It may not offer a completely plug-and-play Linux experience.
What is the advantage of the 2.5GbE Ethernet port?
The 2.5 Gigabit Ethernet port (Intel i226) provides up to 2.5 times the network bandwidth of a standard 1 Gigabit Ethernet port. This is beneficial for transferring large files over a local network, accessing a high-speed NAS (Network-Attached Storage), or improving performance in server applications where network throughput is a bottleneck. To utilize this speed, the rest of your network (router, switches, other devices) must also support 2.5GbE or higher.
About the author
Elvis Dicki writes reviews and buying guides for CyberSecLabs.