Key Takeaways
1. The ASRock NUC Ultra 300 series mini PCs features Intel’s “Panther Lake” processors, including the powerful Intel Core Ultra 7 X358H with 16 cores.
2. There are four models: NUC Box 358H, NUCS Box 358H, NUC Box 325, and NUCS Box 325, with the 358H models offering superior performance compared to the 325 models.
3. Graphics capabilities differ, with the 358H models featuring an Arc B390 iGPU and the 325 models having a 4-core Xe3 iGPU.
4. Both NUC and NUCS models support up to 128 GB of DDR5 memory and have dual M.2 slots for storage, with size differences between the two.
5. Pricing and availability are not yet disclosed, and interested buyers should check ASRock’s official website for updates.
Back when the ASRock NUC Ultra 300 series of efficient mini PCs was introduced at CES 2026, we didn’t have a lot of information. However, it looks like we now have some insights, as ASRock has finally disclosed the complete specifications of these systems.
Powerful Performance
The NUC Ultra 300 Box mini PC collection will be driven by Intel’s “Panther Lake” processors, including the robust Intel Core Ultra 7 X358H CPU. This CPU consists of 16 cores, which are divided into 4 high-performance cores, 8 efficiency cores, and 4 additional low-power efficiency cores. They have provided details on four different models: the NUC Box 358H, the NUCS Box 358H, the NUC Box 325, and the NUCS Box 325.
As indicated by the product names, the models with the 358H label will come with the previously mentioned Core Ultra X7 CPU, whereas the models ending in 325 will be equipped with a less powerful Core Ultra 5 325 CPU, which has only 8 cores. The X7 models will also feature the impressive Arc B390 iGPU that has 12 cores, which offers performance close to the RTX 4050 Laptop dGPU.
Graphics Capability
On the other hand, users of the Core Ultra 5 325 mini PC will have to settle for its 4-core Xe3 iGPU, which is expected to perform similarly to the Radeon 760M iGPU found in older mid-range Ryzen APUs. The distinction between the NUC and NUCS models is straightforward: the NUCS is thinner and has one less 2.5G Ethernet and USB 3.2 Gen2 Type-A port. The I/O details are as follows:
Memory can go up to 128 GB of DDR5-7200/6400 memory, while storage can be managed through dual M.2 slots (M.2 2280 PCIe Gen 5 x4, M.2 2242 PCIe Gen 4 x4). Both the NUC and NUCS models share dimensions of 117.5 x 110 mm, but the NUCS is slimmer at 38 mm compared to 49 mm for the NUC. They both come with active cooling, and support for WiFi 7 and Bluetooth 6 is included.
Pricing and Availability
Details on pricing and availability haven’t been made public, which is common for industrial mini PCs. For further information, interested buyers are encouraged to check ASRock’s official website for the NUC Ultra 300 mini PC series.
For regular users searching for a good mini PC for everyday tasks, they might consider the AMD Ryzen 7 8845HS-powered GMKtec K8 Plus, which is currently priced at $630 on Amazon.
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