GMKtec is offering a surprisingly affordable mini PC that won't break the bank

(Image credit: GMKtec) GMKtec NucBox M5 Ultra pairs an eight-core Ryzen 7 7730U with dual 2.5GbE, Wi-Fi 6E, and triple-display output while starting at just $330 a pop for a barebones configurationThe underlying 2023-release CPU is capable, but a rebadge of the 2022-launched Zen 3 Ryzen 7 5825U, which is, in turn, a 2021-launched 5800U with a 100 MHz bump to base and boost clocksThe price can be reduced to as little as $280 per unit for users buying 5 of the RAM- and SSD-less SKUGMKtec has put its NucBox M5 Ultra back in the limelight, and the offering is familiar for the Shenzhen mini PC maker's mid-range lineup.It comes with an eight-core AMD processor, two 2.5 Gigabit Ethernet ports, upgradeable memory and storage, and a price starting just over $300.The catch for any prospective buyer is that you must bring your own DDR4 laptop RAM and SSD to get it going.A capable NUC that is hiding its underlying CPU's ageThe M5 Ultra runs the AMD Ryzen 7 7730U, an eight-core, sixteen-thread part clocked from 2.0 GHz to 4.5 GHz with 16 MB of L3 cache, built on TSMC's 7nm process with a default 15W TDP. Despite the 7000-series badge, it belongs to AMD's Cezanne lineup via the Barcelo-U refresh announced in January 2022.The CPU it most closely matches in clock speeds, core configuration, and performance is the Ryzen 7 5825U, which is a slightly higher-clocked version of the January 2021-released Ryzen 7 5800U, which runs 100MHz lower on both base and boost clocks.This is interesting because prospective buyers might feel they are buying a Zen 4-based CPU thanks to its 7000-series badge but would end up getting a CPU that was first available more than half a decade ago, even if it does hold its own in its price and performance segment.A well-rounded offering with plenty of expansion under the hoodThe M5 Ultra offers two DDR4-3200 SODIMM slots supporting up to 64 GB, and two M.2 2280 slots, allowing for a variety of configurations based on the user's needs.Sign up to the TechRadar Pro newsletter to get all the top news, opinion, features and guidance your business needs to succeed!It does have its limitations due to the underlying CPU, however: while GMKtec claims each M2 slot can support up to 8 TB, for a nominal 16 TB ceiling, speeds are capped at PCIe 3.0 because the 7730U provides only 16 usable lanes and no Gen 4 support out of the box.Connectivity is where the unit particularly shines: it comes with two Realtek RTL8125 2.5GbE controllers, Wi-Fi 6E and Bluetooth 5.2, and a 10 Gbps, 100W USB port in addition to two USB 3.2 Gen 2 Type-A ports and two USB 2.0 ports, a very formidable offering for a Nuc-tier PC.The system, which is powered by a 65W PSU over a Type-C connector, also offers HDMI 2.0, DisplayPort, and USB-C for up to three simultaneous connections for power users looking to run a multi-display setup.One could argue that pricey RAM and SSD options make sourcing them considerably less appealing and a tall order, but even with that in mind, at today's prices, the NucBox has plenty of connectivity under the hood, decent power, and a raw customizability that is hard to argue with in 2026. Follow TechRadar on Google News and add us as a preferred source to get our expert news, reviews, and opinion in your feeds. Rahim Amir is a UAE-based tech writer who enjoys building PCs as much as he enjoys writing about them. He has been professionally writing about PC hardware since 2023, focusing on buyer’s guides, hardware reviews, and sponsored content and features related to tech.Having built hundreds of gaming PCs and being an avid gamer in his spare time, Rahim tends to have stronger opinions about hardware than most. This is particularly on display when he gets his way with powerful, but minimalistic RGB builds even as Small Form Factor (SFF) PCs come a close second.