If you’ve been looking for a mini PC that can actually replace your desktop, the GMKtec NucBox K12 deserves a look. It’s built around the AMD Ryzen™ 7 H255 processor with Radeon 780M graphics, delivering eight Zen 4 cores and sixteen threads of power in a palm-sized case that runs quiet and efficient.

⚙️ Hardware & Core Specs

CPU: Ryzen 7 H255 (8 cores / 16 threads, 3.8 GHz base to 4.9 GHz boost)
GPU: Radeon 780M (12 cores up to 2600 MHz)
Fabrication: TSMC 4 nm FinFET
Performance modes: 35 W quiet / 54 W balanced / 65 W turbo
OS: Windows 11 Pro

Despite its size, the K12 delivers desktop-grade performance and sustains boost clocks without throttling thanks to its efficient cooling design.

💾 RAM & Storage Configurations

Available options:

Barebone – add your own RAM and SSD
32 GB DDR5 + 1 TB SSD
64 GB DDR5 + 1 TB SSD

It supports up to 128 GB DDR5 (5600 MT/s) and offers three M.2 PCIe 4.0 slots (2 × 4.0×2 + 1 × 4.0×4) for a total capacity of 24 TB. That makes it ideal for editors, developers, or anyone who needs massive local storage in a small chassis.

🧊 Cooling & Build Quality

The K12 uses a dual-fan vapor chamber system with intelligent temperature control. Even under heavy load, it stays quiet and stable. The metal housing feels premium and adds to heat dissipation, while the minimal aesthetic looks great on a desk or entertainment center.

🔌 Ports & Connectivity

Front I/O

USB-C (USB 3.2 Gen 2, PD/DP/Data)
2 × USB 3.2 Gen 2 Type-A
USB 2.0
3.5 mm audio combo jack
Power button with LED + Clear CMOS

Rear I/O

HDMI 2.1 and DisplayPort 1.4
USB4 (40 Gbps + PD + DP 1.4)
Oculink port (PCIe Gen 4×4) for eGPU
Dual 2.5 G LAN (Realtek 8125BG)
Extra USB 3.2 + USB 2.0
Fan/LED control button

Wireless: Wi-Fi 6E (2.4 Gbps) + Bluetooth 5.2

🖥️ Display & Performance

Supports quad 4K output via HDMI, DP, USB4, and Type-C. The Radeon 780M handles 4K video editing and media playback smoothly, and light gaming runs better than expected for integrated graphics. Multitasking feels snappy across modes, and power draw remains efficient.

💡 Why It Stands Out

Triple PCIe 4.0 SSD slots (up to 24 TB)
Up to 128 GB DDR5 RAM
Oculink eGPU support
Dual 2.5 G LAN + Wi-Fi 6E
Quad 4K display support
Quiet dual-fan cooling
Premium metal build

💸 Pricing & Availability

Barebone: ≈ $549.99
32 GB RAM + 1 TB SSD: ≈ $549.99
64 GB RAM + 1 TB SSD: ≈ $749.99

Includes free worldwide shipping and a 1-year warranty.

🎯 Who It’s For

Creators and editors needing a compact workstation
Gamers pairing with an external GPU
Home lab and NAS enthusiasts
Professionals seeking portable desktop performance
Anyone wanting a quiet, powerful PC that fits anywhere

🗣️ Final Thoughts

The GMKtec NucBox K12 proves that mini PCs can be both powerful and practical. With Ryzen 7 H255 performance, massive storage expandability, and eGPU support through Oculink, it’s a desktop replacement that doesn’t take up desk space.

If you want a compact system that can do it all—from 4K editing to server tasks—this is the one to beat.

🔗 Buy Here

👉 GMKtec NucBox K12 Mini PC on Amazon

If you’ve been searching for a powerful yet budget-friendly desktop replacement, the KAMRUI GK3Plus Mini PC is worth a serious look. Packed with the 12th Gen Intel Alder Lake N95 processor, 16GB of RAM, and a 512GB M.2 SSD, this small but mighty machine delivers surprising performance for its size and price.

👉 Check it out here: KAMRUI GK3Plus Mini PC on Amazon

Performance That Punches Above Its Price

At the heart of the GK3Plus is Intel’s Alder Lake N95 CPU, a quad-core processor capable of reaching up to 3.4GHz. Compared to older chips like the N5105 or N5095, it offers a 35% CPU boost and up to 78% better graphics performanceAmazon.com_ KAMRUI GK3Plus Mini…. That means smoother multitasking, faster app launches, and enough power to handle office work, video streaming, and even light photo editing.

Memory and Storage

The KAMRUI GK3Plus ships with 16GB DDR4 RAM, making it responsive even when multiple apps are running. Storage comes in the form of a fast 512GB M.2 SSD, ensuring snappy boot times and quick file access. Need more space? You can expand with a 2.5” SATA SSD or HDD, supporting up to 2TB total storageAmazon.com_ KAMRUI GK3Plus Mini….

Compact and Versatile Design

Measuring just 5.1 × 5.1 × 1.96 inches and weighing less than 2 pounds, this mini PC fits anywhere—on a desk, under a TV, or mounted behind a monitor with the included VESA mount. The sleek silver finish blends easily into both office and home environments.

Display and Graphics

Equipped with Intel UHD Graphics (1.20 GHz), the GK3Plus supports 4K at 60Hz resolution across three displays simultaneously (dual HDMI + VGA). That makes it perfect for multi-monitor productivity, home theater setups, or running a media server like PlexAmazon.com_ KAMRUI GK3Plus Mini….

Connectivity

Despite its small size, the GK3Plus offers plenty of ports and connections:

2× USB 3.2 + 2× USB 2.0
2× HDMI + 1× VGA
Gigabit Ethernet (RJ45)
Mic-in & audio-out

It also includes dual-band WiFi 5 and Bluetooth 4.2, making it easy to connect accessories and peripherals.

Who Is It For?

This mini PC is an excellent choice for:

Home office users who need reliable performance in a compact form factor.
Students who want an affordable but capable machine.
Media enthusiasts looking for a quiet 4K-capable streaming or Plex box.
Light gamers & emulator fans who want casual gaming in a small package.

Final Verdict

The KAMRUI GK3Plus Mini PC is a fantastic value at around $200. While it’s not designed for heavy gaming or demanding creative workloads, it’s more than capable for productivity, streaming, and everyday use. With its compact size, quiet operation, and upgradeable storage, it’s one of the best budget-friendly mini PCs you can buy in 2025.

👉 Grab it here: KAMRUI GK3Plus Mini PC on Amazon

🧠 GMKtec NucBox K12 Mini PC Review: Small Body, Serious Power