Dual 2.5 Gigabit Ethernet ports and In-Band ECC memory across every SKU make ASRock Industrial's new NUC Core 300 series an appealing platform for compact self-hosted infrastructure. The lineup spans four products built on Intel's Core Series 3 "Wildcat Lake-U" silicon: the NUC BOX-320 and NUC BOX-304 are fan-cooled barebones mini PCs measuring 11.75 x 11.0 x 4.9 cm (4.6 x 4.3 x 1.9 inches), while the NUC-320 and NUC-304 are standalone motherboards sized at 10.4 x 10.2 cm (4.1 x 4.0 inches) for custom enclosures and embedded builds. The standalone boards add a SATA 3.0 port, RS-232/RS-422/RS-485 COM header, and an extended operating temperature range of -20 to 70°C (-4 to 158°F).

The Core 5 320 variant features a 6-core CPU (2 P-cores up to 4.6 GHz, 4 LPE-cores up to 3.4 GHz), a 2-core Intel Xe3 GPU rated at 20 TOPS, and a 16 TOPS NPU. The Core 3 304 steps down to a 5-core CPU and a single Xe3 GPU core at 9 TOPS with a 15 TOPS NPU. Both support up to 64 GB of DDR5-6400 via a single SO-DIMM slot, dual M.2 PCIe Gen4 NVMe slots with RAID 0/1 on the BOX models, triple-display output through two HDMI 2.1 ports and USB-C with DisplayPort Alt Mode, Wi-Fi 6E with Bluetooth 5.3 (pre-installed on BOX models), and two USB 3.2 Gen2x2 Type-C ports on the front panel. The networking stack pairs an Intel I226-V controller with a Realtek RTL8125BG for the dual 2.5GbE setup, and power input accepts 12 to 24 V DC.

ASRock officially lists only Windows 10 and 11 support, but Wildcat Lake is already well-represented in recent Linux kernels. Intel engineers landed audio support in Linux 6.16, display and Xe driver enablement in 6.17, and NPU accelerator patches for the IVPU driver shortly after. GCC and LLVM Clang have both added -march=wildcatlake targeting. A recent distribution such as Ubuntu 26.04 should handle the platform out of the box, including the dual 2.5GbE NICs and the on-chip NPU for local inference workloads.

That expectation holds up against real hardware, even if not the NUC BOX-320 itself. CNX Software's review of the Beelink EQi, a different mini PC built around the same Core 3 304 Wildcat Lake-U SoC and the same Intel I226-V 2.5GbE controller, found that Ubuntu 26.04 boots and runs well, with the NPU detected and functional (its firmware updated automatically after an upgrade from kernel 7.0 to 7.1) and Thunderbolt 4/USB4 throughput actually ahead of Windows. The same test turned up regressions worth watching: 2.5GbE throughput capped around 840 Mbps against 1.77 Gbps on Windows on identical hardware, and Wi-Fi 6 throughput came in roughly halved. Those figures are specific to the Beelink's board and Wi-Fi module rather than the NUC BOX-320's own Realtek RTL8125BG pairing, but they're the clearest real-world data point so far on how this generation of Wildcat Lake hardware behaves under Linux.

Pricing has not been announced. The BOX models ship as barebones kits with a 19 V / 90 W adapter and VESA mount bracket, but RAM and storage are sold separately. Product details are listed on ASRock Industrial's pages for fanned BOX PCs and NUC single board computers.