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Small silver aluminium mini PC with front ports and VESA bracket

Defendwe

Defendwe Q430SY barebone mini PC 4GB RAM 32GB SSD

SKU CH-KH6J-Z4WBS MPN Q430SY

Fanless mini desktop with dual LAN, four USB 3.0 ports and optional dual-band Wi-Fi

  • ProcessorIntel Pentium 4 / Celeron
  • Fanless aluminium chassis runs silently in any workspace
  • Dual Realtek RTL8111E Gigabit LAN ports for reliable wired networking
  • Four USB 3.0 and two USB 2.0 ports connect peripherals without a hub
  • VESA bracket mounts behind a monitor to free desk space
  • Pre-installed inactive Windows 10 lets you install your preferred OS immediately

Industrial Fanless Mini PC

The Defendwe Q430SY is a fanless barebone mini PC built around an onboard Intel Core i3-4020Y processor with HD Graphics 4200. It ships with 4 GB of RAM and a 32 GB SSD, ready for embedded or edge deployments. Dual RJ-45 ports and optional dual-band Wi-Fi provide flexible network connectivity. The aluminium alloy chassis supports VESA mounting for space-constrained installations.

Sustained Load Behaviour

Passive cooling keeps the system silent while the CPU operates at its 11.5 W TDP within a 0°C to 50°C range. Without active airflow, performance remains steady during long-duration tasks such as industrial monitoring or digital signage playback. The fanless design eliminates moving-part wear, reducing maintenance in continuous-operation environments. Thermal throttling may engage under prolonged heavy compute loads.

Pre-Purchase Checks

Verify that your intended operating system supports the pre-installed inactive Windows 10 test image or plan a fresh install of Windows 7, 8, 10, Linux or pfSense. Confirm that a single RS-232 serial port meets your legacy I/O needs, as this SY model omits the three additional ports found on the PY variant. Ensure the 12 V DC input matches your power infrastructure and that the 155 x 127 x 48 mm footprint fits the mounting location.

How it compares

Measured against everything we stock in Mini PC Barebone Systems, at today’s prices. Recalculated every night.

Price $385.99
Cheaper than about 72% of the 1,735 comparable items (median $564.99).

New to this? Buying PC parts with Monero — what to check, what it costs to pay, and what is never asked for.

Specifications

Processor
ProcessorIntel Pentium 4 / Celeron

Questions about this item

How much power does the onboard Core i3-4020Y draw when the Q430SY runs continuously?

The processor has an 11.5 W TDP and the chassis uses a fanless aluminium shell, so sustained load stays within that thermal envelope without active cooling.

Which display cables must I already have to use the two video ports on the back panel?

The unit provides two HD video outputs; you will need matching HD cables for the monitors you plan to connect.

Will my existing USB 2.0 and 3.0 peripherals work with the front and rear ports on this mini PC?

Yes — the front panel has two USB 2.0 and two USB 3.0 ports, and the rear adds two more USB 3.0 ports, all compatible with existing devices.

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