Tuesday, July 22nd 2025
AMD Ryzen AI MAX "Strix Halo" APUs Arrive on Mini-ITX Boards with 128 GB LPDDR5X
Chinese ODM Sixunited has introduced its STHT1 Thin Mini-ITX board, bringing AMD's Strix Halo "Ryzen AI MAX" APUs to the PC enthusiast market for the first time. Previously available only in high-end laptops and compact PCs, these Zen 5-based SoCs feature up to 16 CPU cores, an enhanced RDNA 3.5 Radeon 8060S GPU with up to 40 CU, and an integrated AI engine. Sixunited's non-socketed design allows builders to select any Ryzen AI MAX model: from the six-core, 16-thread 380 to the top-tier 16-core, 32-thread 395+ SKU, each supporting a configurable TDP range between 45 and 120 watts. To fully leverage this performance, the STHT1 ships with 128 GB of LPDDR5X-8000 memory soldered directly onto the board. This unified memory pool feeds the CPU, GPU, and AI engine, ensuring sufficient bandwidth for tasks such as LLM inference and real-time rendering in a compact footprint.
The STHT1 MoDT (Mobile on Desktop) platform offers plenty of connectivity and storage options. Dual M.2 2280 PCIe 4.0 x4 slots accommodate high-speed NVMe drives, while an M.2 2230 socket supports Wi-Fi modules. The rear panel features HDMI 2.1, a user-selectable DisplayPort, VGA, or COM output, two USB 3.2 Gen 2 Type-A ports, additional USB 3.2 Gen 1 and USB 2.0 ports, Gigabit Ethernet, and audio jacks. Internally, a robust 16-phase voltage regulator module powers the SoC, alongside a 4+1-phase arrangement for auxiliary components. Supporting the board are two fan headers, a standard four-pin ATX power connector, and a 19-volt DC-in plug, all housed on a 170×170 mm PCB.
Sources:
ITHome, Sixunited
The STHT1 MoDT (Mobile on Desktop) platform offers plenty of connectivity and storage options. Dual M.2 2280 PCIe 4.0 x4 slots accommodate high-speed NVMe drives, while an M.2 2230 socket supports Wi-Fi modules. The rear panel features HDMI 2.1, a user-selectable DisplayPort, VGA, or COM output, two USB 3.2 Gen 2 Type-A ports, additional USB 3.2 Gen 1 and USB 2.0 ports, Gigabit Ethernet, and audio jacks. Internally, a robust 16-phase voltage regulator module powers the SoC, alongside a 4+1-phase arrangement for auxiliary components. Supporting the board are two fan headers, a standard four-pin ATX power connector, and a 19-volt DC-in plug, all housed on a 170×170 mm PCB.


18 Comments on AMD Ryzen AI MAX "Strix Halo" APUs Arrive on Mini-ITX Boards with 128 GB LPDDR5X
I think 48GB of shared memory on system like these would be the perfect sweetspot to have good performance without taking a loan.
For example Thermalright Strix Halo, announced 3 months ago, does anyone have it.
Where to actually buy any of Strix Halo, not in 6 months, now, this week.
I think this was the main reason Halo became Halo (the exclusive deal), PS AMD didn't want a Halo based mini-PC at first, but the design leaks and announced mini-PC products are over 10 now and counting compared to two laptops only.
One of the things that makes Halo more expensive and OEM's trying to avoid for mainstream products is that it requires a completely new laptop platform, motherboard and cooling design, and maybe even a chassis. So some OEMs are seeing the market demand now to justify working on one or not, and working on a new design takes time.
Being the first generation is always a gamble for both AMD and OEMs, so you'll see more with time, and hopefully the next generation (Zen6 based Halo) will probably be more popular and maybe cheaper as well on average.
So far it seems like the Framework option is the cheapest model announced.
AMD could have sold a whole package: CPU/GPU/VRAM. Make it BGA or hell even socketed (couldn't use AM5 though) and it would be a nice modular package that could draw in all the usual motherboard AIBs.
Instead we have all these one off hard to find low volume designs that make for nice press releases and not much else.
AMD probably seriously misjudged demand for the product
I've also owned a 2025 Flow Z13 with 64GB of RAM for about 3 months now, albeit I did have to wait a bit for it to launch on Best Buy US.
On-topic:
This STHT1 MoDT board is a disappointment as it lacks two USB4 connectors which is natively supported by the APU itself. It should not take up any extra PCI-E lanes because of this.
Not cheap for a consumer, for companies it just takes convincing them to buy it for you :D