Asrock

Mars-C4205U

CPU Celeron C4205U

GPU Intel UHD

Drives 2

The Asrock Mars-C4205U is a mini PC powered by the Intel Celeron C4205U (8th gen). It features 2 performance cores and 2 threads and a soldered CPU. Graphics are handled by the integrated Intel Intel UHD. Storage capacity of up to 2 drives including 1 NVMe, 1× 2.5" SATA. Networking features 1 Ethernet port (up to 1G). Dimensions: 194 × 150 × 26mm (0.76L). Uses a Brick PSU, 15W TDP.

CPU & Performance

CPUCeleron C4205U

Generation8th

P-Cores2

Threads2

Socket0

GPU

GPUIntel UHD

Discrete GPUNo

Integrated GPUYes

eGPU supportNo

RAM

RAM slots2

Max speed2400 MT/s

ECC supportNo

Storage

Max drives2

NVMe slots1

Gen3 x41

2.5" SATA1

SD cardNo

Ports & Connectivity

Max displays2

Network

Max Ethernet1G

vProN

Physical

Dimensions194 × 150 × 26 mm

Volume0.76L

Fan size70mm

Warranty1 yr

Power

TDP15W

PSU typeBrick

Additional

Recommended for office work, web browsing, media playback, light home or business use, and very small desk setups. Consider Asrock Mars-C4205U if you want a ultra-compact mini PC built around its listed Intel Celeron C4205U processor and Intel Intel UHD integrated GPU. It is less suitable for heavy gaming or GPU-accelerated workloads because no discrete or high-speed external GPU path is listed.

Asrock Mars-C4205U features Intel Celeron C4205U with Intel Intel UHD integrated GPU, offering the listed mini PC hardware configuration. CPU details include 8th CPU generation, 2 performance cores, and 2 threads. Memory support includes 2 RAM slots at 2400 MT/s. Storage support includes up to 2 storage drives including 1 NVMe SSD slot, 1× PCIe Gen3 x4 NVMe, and 1× 2.5-inch SATA bay. Display support includes support for up to 2 displays. Physical design includes a 194 × 150 × 26 mm chassis (0.76L). Cooling information lists 70 mm main fan. Power information lists Brick power supply and 15W TDP. Lifecycle information lists 1-year warranty.

The overall score is not populated for Asrock Mars-C4205U, so this model should be evaluated by the listed hardware specifications rather than by a ranked dataset position.

Verdict

Best for

basic office work, web browsing, digital signage, very small desk setups.

Avoid if

you need modern AAA gaming or sustained GPU rendering; you need a high-speed external-GPU or advanced docking path; you need fast wired networking beyond basic Gigabit Ethernet.

Alternatives

GMKtec/Morefine Nucbox K11 4090M — higher performance ceiling
CWWK/Topton 1245U 8x2.5G — stronger wired networking for homelab use
Asrock NUC box 8665UE — closest spec alternative

Review

The Asrock Mars-C4205U is a ultra-compact mini PC built around Intel Celeron C4205U and Intel Intel UHD integrated graphics. With pricing dependent on configuration and seller availability, it is aimed at buyers looking for basic office work, web browsing, digital signage, very small desk setups. The core spec sheet is solid for its class: unspecified maximum RAM capacity, up to 2 drives, including 1 NVMe slot (1 PCIe 3.0 x4 NVMe, 2.5-inch SATA), 1 Ethernet port, and basic display and USB connectivity. Because the overall score is not populated, this model is best evaluated by its listed specifications, price, and feature mix rather than a single rank. The main reason to pause is fit: avoid it if you need modern AAA gaming or sustained GPU rendering; you need a high-speed external-GPU or advanced docking path; you need fast wired networking beyond basic Gigabit Ethernet. Overall, the Asrock Mars-C4205U 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.