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Black tall barebone mini PC with front USB-C and audio jack

ASRock Industrial

ASRock Industrial NUC BOX-325 Intel Core Ultra 5 325 barebone mini PC

SKU CH-YJJ4-8XXAB MPN NUC BOX-325

Barebone mini PC with Intel Core Ultra 5 325 processor, dual-channel DDR5 memory support up to 128 GB, dual 2.5 GbE LAN, Wi-Fi 7, Bluetooth 6.0, USB4/Thunderbolt 4 and quad-display outputs

  • ColorBlack
  • Form FactorTall
  • CPU TypeIntel Core Ultra 5 325
  • CPU Cores8-Core (4P+4LE)
  • Memory installedNo Memory
  • Memory slot2 x 262Pin SO-DIMM

CPU Intel Core Ultra 5 325

LAN 2 x 2.5 Gigabit LAN

  • Intel Core Ultra 5 325 with 8 cores and NPU AI engine
  • DDR5-7200 dual-channel memory up to 128 GB across two SO-DIMM slots
  • USB4 and Thunderbolt 4 plus USB 3.2 Gen 2 ports for fast I/O
  • Dual Intel 2.5 GbE LAN and Wi-Fi 7 with Bluetooth 6.0
  • Quad-display support via two HDMI 2.1 and two DisplayPort outputs

Industrial AI barebone

The ASRock Industrial NUC BOX-325 is a tall mini PC barebone built around the Intel Core Ultra 5 325 processor with eight cores and a dedicated NPU for local AI workloads. It targets developers and integrators who need a compact platform for inference, edge analytics or multi-display signage. Memory and storage are not included, so the buyer supplies DDR5 SO-DIMMs and M.2 SSDs.

Thermals and power

A 19V 120W external adapter feeds the system, while the chassis and internal heatsink dissipate heat from the 4P+4LE core configuration under sustained compute loads. Dual 2.5GbE Intel I226 controllers and Wi-Fi 7 with Bluetooth 6.0 maintain network throughput without adding high-wattage components. Fan behaviour scales with CPU temperature, keeping acoustic output low during typical inference or office tasks.

Expansion and software

Two SO-DIMM slots accept DDR5 6400 modules up to 128GB total, and two M.2 Key M slots provide PCIe Gen5 x4 at 2280 and PCIe Gen4 x4 at 2242 for fast primary and secondary storage. Quad display output uses two HDMI 2.1 ports, DP 2.1 via USB4/Thunderbolt 4 and DP 1.4a from the front Type-C. Intel VMD enables RAID 0 or 1 across the M.2 drives, and Intel PTT handles platform trust without a discrete TPM module.

Highlights

  • Intel Core Ultra 5 325 with 8 cores and NPU AI engine
  • DDR5-7200 dual-channel memory up to 128 GB across two SO-DIMM slots
  • USB4 and Thunderbolt 4 plus USB 3.2 Gen 2 ports for fast I/O
  • Dual Intel 2.5 GbE LAN and Wi-Fi 7 with Bluetooth 6.0
  • Quad-display support via two HDMI 2.1 and two DisplayPort outputs

Specifications

BrandASRock Industrial
ModelNUC BOX-325
ColorBlack
Form FactorTall
CPU TypeIntel Core Ultra 5 325
CPU Cores8-Core (4P+4LE)
Memory installedNo Memory
Memory slot2 x 262Pin SO-DIMM
Memory Type SupportedDDR5 6400
Max Memory Supported128GB
Dual Channel Memory SupportedYes
M.2 Slot1 x M.2 (KEY M, 2280) with PCIe Gen5 x4 for SSD
1 x M.2 (KEY M, 2242) with PCIe Gen4 x4 for SSD
Integrated GraphicsIntel Graphics
Onboard AudioRealtek ALC256
Channel2 Channel
LANLAN1: Intel I226LM with 10/100/1000/2500 Mbps
LAN2: Intel I226V with 10/100/1000/2500 Mbps
Max LAN Speed2.5Gbps
Wireless LAN802.11be
WiFi GenerationWi-Fi 7
BluetoothBluetooth 6.0
Front USB1 x USB 3.2 Gen2 (Type-A)
1 x USB4/Thunderbolt 4 (Supports DP 2.1 display output)
1 x USB3.2 Gen2x2 (Type-C, Supports DP1.4a display output)
Front Audio Ports1 (headphone & microphone jack)
HDMI2 x HDMI 2.1
Rear USB2 x USB 3.2 Gen2 (Type-A)
RJ452 x 2.5 Gigabit LAN
Power Supply12V~24V DC-In Jack
Dimensions117.5 x 110.0 x 49mm (4.63" x 4.33" x 1.93")
Weight1.0Kg
Packaging1 x 19V/120W Power Adapter
1 x VESA mount bracket
Shipping weight1.50 kg
Package size225 × 140 × 120 mm

Other versions of this model

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Questions about this item

How do I install memory in the two 262-pin SO-DIMM slots and which step is often missed?

Insert each DDR5 module at an angle until the gold contacts disappear, then press down firmly until both side clips click; the step most people miss is seating the second module with equal force so dual-channel mode activates.

What maintenance or replacement will the Intel I226LM and I226V 2.5GbE controllers need over time?

No scheduled maintenance is required; keep ventilation clear so the controllers stay within thermal limits, and apply any driver updates from Intel when they appear.

Which limit appears first during sustained heavy workloads on the Core Ultra 5 325?

The 120 W power adapter caps total system draw, so the CPU will throttle before the DDR5-6400 memory or PCIe Gen5 storage reach their own limits.

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