Specifications
Manufacturer
ASRock Industrial
Series
NUC Ultra 300 BOX / NUCS Ultra 300 BOX (slim)
CPU Options
Intel Core Ultra X7 358H (4P+8E+4LPE) · Intel Core Ultra 5 325 (4P+4LPE)
Platform
Intel Core Ultra Series 3 (Panther Lake-H)
ECC
In-band ECC supported on all CPU SKUs
Memory
Up to 128GB DDR5 — 6400 MHz (Ultra 5) / 7200 MHz (Ultra 7), 2× 262-pin SO-DIMM
Storage 1
M.2 Key M 2242/2280, PCIe Gen5 x4 NVMe
Storage 2
M.2 Key M 2242, PCIe Gen4 x4 NVMe
RAID
Intel VMD RAID 0/1
Display
2× HDMI 2.1 up to 7680×4320 @60Hz · 2× DP 2.1/1.4a via USB-C
Multi-Display
Up to 4 independent displays
LAN
2.5GbE Intel I226LM with vPro (NUC adds 2.5GbE I226V)
Wireless
Wi-Fi 7 + Bluetooth 6.0 via M.2 Key-E 2230
USB
1× USB4/Thunderbolt 4 (DP 2.1) · 1× USB 3.2 Gen2x2 Type-C (DP 1.4a) · 3× (NUC) / 4× (NUCS) USB 3.2 Gen2 Type-A
Audio
Realtek ALC256 codec, 3.5mm headphone/mic
BIOS / Security
256 Mbit SPI AMI BIOS · Intel PTT · watchdog timer
Power
12–24V DC jack; AT/ATX modes; 19V/120W adapter
Dimensions
NUC 117.5 × 110.0 × 49 mm · NUCS 117.5 × 110.0 × 38 mm (~1 kg)
Operating Temp
0°C to 40°C (storage -40°C to 85°C)
Certifications
CE, FCC
Overview
The ASRock Industrial NUC(S) Ultra 300 BOX Series is the Panther Lake generation of the company's compact box PC line, built on Intel Core Ultra Series 3 processors. Two CPU SKUs define the range: the Core Ultra X7 358H with a 4P+8E+4LPE configuration for the performance tier, and the Core Ultra 5 325 with 4P+4LPE for cost-sensitive deployments. Both support in-band ECC on memory, which matters for edge nodes running long-lived inference services where a silent memory error would corrupt results.
The BOX chassis carries two SO-DIMM slots for up to 128GB of DDR5 — 6400 MT/s on the Ultra 5 and 7200 MT/s on the Ultra 7 — plus dual M.2 Key M slots for NVMe storage, one at PCIe Gen5 x4 and one at Gen4 x4, with Intel VMD RAID 0/1 available. Display connectivity is unusually generous for the form factor: two HDMI 2.1 ports at up to 8K60, two DisplayPort 2.1/1.4a outputs over USB-C, and support for four independent displays, making the unit suitable as a signage player or a multi-head machine-vision host as well as a general edge computer.
Networking pairs a 2.5GbE Intel I226LM controller with vPro support against a second 2.5GbE port on the NUC variant (the NUCS drops the second NIC but adds a fourth USB Type-A), and Wi-Fi 7 with Bluetooth 6.0 is available through an M.2 Key-E 2230 socket. USB4/Thunderbolt 4, USB 3.2 Gen2x2 Type-C and multiple Gen2 Type-A ports cover peripherals, cameras and external storage. The two sizes — 49mm tall for the NUC and 38mm for the NUCS — let integrators trade expansion height for a slimmer profile. The series was announced in January 2026.
Key Benefits
Latest silicon, compact footprint: Panther Lake cores plus Xe3-class graphics and NPU put local AI inference in a 1-litre fan-cooled enclosure. Memory headroom: 128GB DDR5 with in-band ECC suits multi-model inference and in-memory analytics at the edge. Display and I/O density: four independent outputs, triple 2.5GbE-capable networking and USB4/TB4 make one box serve vision, signage and control duties simultaneously.
Applications
Edge AI inference and video analytics, smart-retail and digital-signage players, industrial automation HMIs, machine-vision hosts with multi-camera capture, kiosk and queue-management systems, and general-purpose compact industrial computing where PCIe Gen5 NVMe and 8K output are required.
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