Asrock NUC Box-255H
Asrock

NUC Box-255H

CPU U7 255H
GPU Intel Arc 140T
Max RAM 96GB
Drives 3
From $670
Seller Newegg

The Asrock NUC Box-255H is a mini PC powered by the Intel U7 255H (2nd* gen). It features a soldered CPU. Graphics are handled by the integrated Intel Intel Arc 140T. Supports up to 96GB of RAM across 2 slots at 6400 MT/s. Storage capacity of up to 3 drives including 2 NVMe, 1× 2.5" SATA. Connectivity includes USB4 40Gbps. Networking features 2 Ethernet ports (up to 2.5G). Dimensions: 118 × 110 × 49mm (0.64L). Uses a Brick PSU (120W).

CPU & Performance

CPUU7 255H
Generation2nd*
Threads20
Single-core89
Multi-core42
Socket0

GPU

GPUIntel Arc 140T
Discrete GPUNo
Integrated GPUYes
eGPU supportNo

RAM

Max RAM96GB
RAM slots2
Max speed6400 MT/s
ECC supportNo

Storage

Max drives3
NVMe slots2
Gen4 x42
2.5" SATA1
SD cardNo

Ports & Connectivity

USB4 40Gbps1
Max displays4

Network

Max Ethernet2G
2.5G ports2
vProY

Physical

Dimensions118 × 110 × 49 mm
Volume0.64L
Fan size80mm
Warranty2 yr

Power

PSU typeBrick
PSU120W

Additional

Recommended for productivity, software development, multitasking, media use, light gaming, memory-heavy workloads, and network-focused setups. Consider Asrock NUC Box-255H if you want a ultra-compact mini PC built around its listed Intel U7 255H processor and Intel Intel Arc 140T integrated GPU. It is less suitable for heavy gaming than models with a discrete GPU, but the listed expansion and integrated graphics options make it flexible for everyday workloads.

Asrock NUC Box-255H features Intel U7 255H with Intel Intel Arc 140T integrated GPU, offering 2× 2.5G Ethernet, USB4, and expanded internal storage. CPU details include 2nd* CPU generation and 20 threads. Memory support includes up to 96GB RAM across 2 slots at 6400 MT/s. Storage support includes up to 3 storage drives including 2 NVMe SSD slots, 2× PCIe Gen4 x4 NVMe, and 1× 2.5-inch SATA bay. Display support includes support for up to 4 displays. Port connectivity includes 1× USB4 40Gbps. Networking includes 2× 2.5G Ethernet. Physical design includes a 118 × 110 × 49 mm chassis (0.64L). Cooling information lists 80 mm main fan. Power information lists Brick power supply rated at 120W. Lifecycle information lists 2-year warranty, release date listed as 7-Mar-2025, and Intel vPro support.

Based on its overall score of 346.1, Asrock NUC Box-255H is positioned as a strong upper-range mini PC entry in this dataset; compare it against alternatives by CPU class, GPU type, memory ceiling, storage expansion, LAN, and port selection.

Verdict

Best for

productivity, light gaming, media editing, multitasking, developer workloads.

Avoid if

you need modern AAA gaming or sustained GPU rendering.

Alternatives
  • AceMagic AM08 Pro 6900HX — better value at comparable performance
  • GMKtec/Morefine Nucbox K11 4090M — higher performance ceiling
  • Asus NUC 15 Pro 225H — closest spec alternative

Review

The Asrock NUC Box-255H is a ultra-compact mini PC built around Intel U7 255H and Intel Intel Arc 140T integrated graphics. With a listed price around $670, it is aimed at buyers looking for productivity, light gaming, media editing, multitasking, developer workloads. The core spec sheet is solid for its class: up to 96GB RAM across 2 slots at 6400 MT/s, up to 3 drives, including 2 NVMe slots (2 PCIe 4.0 x4 NVMe, 2.5-inch SATA), 2×2.5GbE, and 1 USB4 40Gbps. Its 346.1 overall score puts it in the upper-middle part of this mini PC database, making it a credible shortlist candidate rather than just a budget filler. The listed release date is 7-Mar-2025. The main reason to pause is fit: avoid it if you need modern AAA gaming or sustained GPU rendering. Overall, the Asrock NUC Box-255H makes the most sense when its CPU/GPU balance, port selection, and expansion profile match your workload; otherwise, compare it against similarly priced mini PCs with better networking, quieter cooling, or stronger upgrade paths.

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