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Small graphite aluminium cube mini PC 82mm square

KUBB

KUBB KM-300-16256P-GR barebone mini PC i3-N300 16GB 256GB

SKU CH-5ECK-TRAQX MPN KM-300-16256P-GR

A fanless mini PC with an 8-core Intel i3-N300, 16 GB DDR5, 256 GB SSD, Wi-Fi 6 and Bluetooth 5.2 in a 3.15 inch aluminium chassis

  • ProcessorIntel® Core™ i3-N300
  • Wi-Fi standardIntel® Wi-Fi 6 AX201
  • Processor socketIntel® Core™ i3-N300
  • Processor cores8-Core
  • Installed memory16 GB DDR5
  • Supported memoryDDR5 4800
  • Fanless aluminium chassis runs silently in any space
  • 8-core Intel Core i3-N300 reaches 3.8 GHz for responsive multitasking
  • 16 GB DDR5 4800 memory handles heavy workloads without bottlenecks
  • 256 GB M.2 SSD provides fast boot and app loading
  • Wi-Fi 6 and Bluetooth 5.2 keep connections stable and fast

Compact Intel i3-N300 barebone

The KUBB KM-300-16256P-GR is a fanless mini PC measuring 3.15 inches square. It ships with an 8-core Intel Core i3-N300 processor, 16 GB of LPDDR5 memory and a 256 GB M.2 SSD. Windows 11 Pro is pre-installed in a graphite aluminium chassis built in France.

Ideal for silent office and edge deployments

This unit suits buyers who need a compact, passively cooled system for productivity, digital signage or light multitasking. It is not for users who require expandable memory beyond 16 GB, discrete graphics performance or additional 2.5-inch drive bays.

Fixed 16 GB LPDDR5 memory

The board integrates 16 GB of DDR5 4800 memory that cannot be upgraded. This single specification decides whether the platform meets your workload capacity or if you must select a system with SODIMM slots.

How it compares

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

Price $411.99
Cheaper than about 69% 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

Product
Brand nameKubb
Product lineKM-300-16256P-GR
Model nameKM-300-16256P-GR
Part numberKM-300-16256P-GR
Product colorBlack
Processor
ProcessorIntel® Core™ i3-N300
Processor socketIntel® Core™ i3-N300
Processor cores8-Core
Memory
Installed memory16 GB DDR5
Supported memoryDDR5 4800
Maximum supported memory16 GB
Storage
Installed storage256 GB SSD
M.2 slots1 x M.2
Graphics
Built-in graphicsIntel UHD Graphics
Audio & video
Built-in audioRealtek RTL8111H
Connectivity
LAN connectionRealtek RTL8111H
Maximum network speed10/100/1000 Mbit/s
Wi-Fi standard802.11ax
Bluetooth support5.2
Ports & slots
Front USB ports1
HDMI ports2
Rear USB ports2
Rear audio jacks1
Size & build
Product dimensions82 × 72 (92 mm with Antenna) x82 mm
Product weight0.45 gr
Main materialAluminum

Questions about this item

How much heat does the fanless i3-N300 produce when it runs all day?

The i3-N300 is built on an efficient architecture optimised for low power consumption and the aluminium chassis acts as a passive heatsink, so it stays cool without a fan.

What must I already own to start using this barebone?

It ships with 16 GB DDR5 and a 256 GB SSD installed, so only a monitor, keyboard and mouse are needed.

Will my older 1080p monitor work with the HDMI 2 outputs?

Yes, the Intel UHD Graphics drives two HDMI ports that are backward compatible with 1080p displays.

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