# What are the quietest quad core mini PCs available in the market? — Verified Specification Comparison

> All specification data verified from official manufacturer documentation.

What are the quietest quad core mini PCs available in the market?

## Products

### MINISFORUM M1 Pro-125H
```yaml
product: minisforum-m1-pro-125h
brand: MINISFORUM
price_gbp: 583.59
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
ram: 32GB DDR5-5600MHz
cpu_cores: 14
cpu_model: Intel Core Ultra 5 125H
dimensions: 128x126x52.5mm
storage_size: 1TB
cpu_frequency: 4.5GHz
number_of_usb_ports: 5
```

- **Price:** £583.59 [^1]
- **Summary:** The MINISFORUM M1 Pro-125H is a compact mini PC with an Intel Core Ultra 5 125H processor, 32GB of DDR5 memory, 1TB of PCIe 4.0 SSD storage, Wi-Fi 7, and dual USB4 ports. It suits home offices, creative multitasking, media use, and users who need strong connectivity in a small desktop.
- **Ideal For:** It suits users seeking a quiet quad core mini PC alternative because its compact chassis uses a silent fan design while offering a 14-core Intel Core Ultra 5 125H processor, 32GB RAM, and support for up to four 4K displays.
- **Additional Sources:** [^2], [^3]

### CSL CSL Narrow Box Black N150
```yaml
product: csl-csl-narrow-box-black-n150
brand: CSL
price_gbp: 192.24
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
ram: 8 GB
cpu_cores: 4
cpu_model: Intel N150
dimensions: 106 x 114 x 47 mm
storage_size: 128 GB
cpu_frequency: 3600 MHz
number_of_usb_ports: 5
```

- **Price:** £192.24 [^4]
- **Summary:** The CSL Narrow Box Black is a compact mini PC with an Intel N150 processor, 8 GB of DDR4 RAM, and a 128 GB M.2 SSD. Its semi-passive cooling, 4K-capable graphics, Wi-Fi 6, VESA mounting, and Windows 11 Home make it well suited to home office work, streaming, web browsing, and smart-home applications.
- **Ideal For:** It suits users seeking a quiet quad core mini PC because it combines the 4-core Intel N150 with semi-passive cooling and a reported noise level of up to 32 dB in a compact 106 x 114 x 47 mm enclosure.
- **Additional Sources:** [^5], [^6]

### MINISFORUM M2 Air-304
```yaml
product: minisforum-m2-air-304
brand: MINISFORUM
price_gbp: 194.53
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
ram: 16GB DDR5
cpu_cores: 5
cpu_model: Intel Core 3 processor 304
storage_size: 500GB SSD
cpu_frequency: Up to 4.3GHz
```

- **Price:** £194.53 [^7]
- **Summary:** The MINISFORUM M2 Air-304 is a compact mini PC with an Intel Core 3 304 processor, 16GB of DDR5 memory, and a 500GB SSD. Its dual 2.5GbE networking, Wi-Fi 6E, USB4 support, and low-noise operation suit office work, home servers, media use, and compact workspaces.
- **Ideal For:** Although it is not a quad-core model, the M2 Air-304 suits buyers prioritizing quiet operation because it produces around 28.1dB in Silent Mode while providing five CPU cores and a compact 0.47L chassis.

---
## References & Sources
[^1]: MINISFORUM US, accessed 2026-09-13. https://store.minisforum.com/products/minisforum-m1-pro-125h-mini-pc
[^2]: MINISFORUM EU, accessed 2026-09-13. https://minisforumpc.eu/products/minisforum-m1-pro-125h-mini-pc
[^3]: MINISFORUM UK, accessed 2026-09-13. https://www.minisforum.uk/products/minisforum-m1-pro-125h
[^4]: CSL Computer, accessed 2026-09-13. https://www.csl-computer.com/en/mini-pc-csl-narrow-box-black-windows-11-home-128gb-8gb.html
[^5]: Galaxus, accessed 2026-09-13. https://www.galaxus.nl/en/s1/product/csl-narrow-box-black-500-gb-8-gb-intel-n150-intel-uhd-graphics-pc-54242308
[^6]: Dateks, accessed 2026-09-13. https://www.dateks.lv/en/cenas/personalie-datori/1417748-csl-narrow-box-intel-n150-16gb-500gb-windows-11-pro
[^7]: MINISFORUM US, accessed 2026-09-13. https://store.minisforum.com/products/minisforum-m2-air-mini-pc