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Compact fanless mini PC with smooth finish, USB-C port and dual HDMI outputs

BFKK

BFKK Quieter3Q N5105 4GB 128GB barebone mini PC

SKU CH-K5MS-CVT1Q

Fanless Intel Celeron N5105 barebone with 4 GB LPDDR4, 128 GB eMMC, dual 4K HDMI, WiFi 5, Bluetooth 5.2 and USB PD 3.0

  • CPU TypeIntel Celeron
  • Totally silent 0 dB operation with fanless heat-sink cooling
  • Intel Celeron N5105 quad-core processor with 4 GB LPDDR4 and 128 GB eMMC
  • Dual HDMI ports each driving 4K at 60 Hz
  • WiFi 5, Bluetooth 5.2 and Gigabit Ethernet for stable connectivity
  • Pocket-sized 5.2 × 3.0 × 0.7 in chassis with VESA mount included

Silent Fanless Operation

The BFKK Quieter3Q is a fanless mini-PC barebone cooled by an enlarged heatsink that delivers completely silent 0 dB operation. It is built around an Intel Celeron N5105 quad-core processor with 4 GB of LPDDR4 memory and 128 GB of eMMC storage. The system ships with Windows 11 Home and supports Linux distributions. Its pocket-sized chassis measures 5.2 by 3.0 by 0.7 inches and includes a VESA bracket for mounting behind a display.

Thermals Noise And Power

Passive cooling eliminates any moving parts so the unit runs at 0 dB in all workloads. The processor draws modest power and the board accepts USB PD 3.0 input between 12 V and 23 V at a minimum of 24 W, allowing operation from power banks or car adapters. A 12 V 2 A DC adapter is included for conventional desk use. Gigabit Ethernet, WiFi 5 and Bluetooth 4.2 provide wired and wireless connectivity without adding acoustic noise.

Build Integration And Expansion

Dual HDMI ports each drive a 4K panel at 60 Hz for multi-monitor setups. Four USB 3.2 ports handle peripherals while a micro SD slot adds removable storage up to 1 TB. An internal M.2 2280 slot accepts PCIe SSDs up to 5 TB; SATA drives are not supported. The tiny footprint and VESA mount free desk space, and BIOS features such as Wake on LAN, PXE boot and Auto Power On suit embedded or kiosk deployments.

Highlights

  • Totally silent 0 dB operation with fanless heat-sink cooling
  • Intel Celeron N5105 quad-core processor with 4 GB LPDDR4 and 128 GB eMMC
  • Dual HDMI ports each driving 4K at 60 Hz
  • WiFi 5, Bluetooth 5.2 and Gigabit Ethernet for stable connectivity
  • Pocket-sized 5.2 × 3.0 × 0.7 in chassis with VESA mount included

Specifications

CPU TypeIntel Celeron

Questions about this item

How do I mount the Quieter3Q on the back of a monitor and what step is often missed?

Attach the supplied VESA bracket to the monitor first, then slide the 5.2×3.0×0.7 in barebone onto the bracket; the step often missed is tightening the four VESA screws before connecting any cables.

Which storage parts will need replacement or expansion later and what are the limits?

The 128 GB eMMC is fixed; you can add a micro-SD card up to 1 TB and an M.2 2280 PCIe SSD up to 5 TB — SATA drives are not compatible.

What thermal limit appears first during sustained loads on the fanless N5105?

The passive heat-sink reaches its dissipation ceiling, causing the quad-core N5105 to throttle clock speeds to stay within safe temperatures.

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