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Small red aluminium cube mini PC 82mm square

KUBB

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

SKU CH-G2KA-8NHMM MPN KM-300-16256P-RP

Fanless mini PC with Intel i3-N300, 16 GB LPDDR5, 256 GB SSD, Wi-Fi 6 and Bluetooth 5.2 in a 3.15-inch red aluminium case

  • ProcessorIntel® Core™ i3-N300
  • Wi-Fi standardIntel® Wi-Fi 6 AX201
  • Processor socketIntel® Core™ i3-N300
  • Processor cores8-Core
  • Installed memory16 GB
  • Supported memoryDDR5 4800
  • Fanless design runs silently with no moving parts
  • Intel Core i3-N300 8-core CPU handles multitasking workloads
  • 16 GB LPDDR5 memory and 256 GB SSD provide responsive storage
  • Wi-Fi 6 and Bluetooth 5.2 deliver modern wireless connectivity
  • Compact 82 × 72 mm aluminum chassis fits tight spaces

Compact fanless mini PC

The KUBB KM-300-16256P-RP is a 3.15-inch aluminium barebone that ships with an Intel Core i3-N300 processor, 16 GB of LPDDR5 memory and a 256 GB M.2 SSD. It runs Windows 11 Pro and targets office, kiosk or digital-signage deployments where silent operation and a tiny footprint matter.

Pre-installed OS and fixed memory

Windows 11 Pro is already licensed and installed, so the unit boots to a ready desktop without extra media. The 16 GB LPDDR5 is soldered and cannot be upgraded, while the single M.2 slot holds the included 256 GB drive and accepts one replacement module.

Gigabit Ethernet and Wi-Fi 6 limits

The Realtek RTL8111H controller caps wired throughput at 1 Gbit/s, and the Intel Wi-Fi 6 AX201 radio tops out at the 802.11ax standard. Bluetooth 5.2 handles peripherals, but the 30 W AC-DC adapter and single HDMI output restrict high-power peripherals or multi-monitor setups.

How it compares

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

Price $363.99
Cheaper than about 75% 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-RP
Model nameKM-300-16256P-RP
Part numberKM-300-16256P-RP
Product colorRed
Processor
ProcessorIntel® Core™ i3-N300
Processor socketIntel® Core™ i3-N300
Processor cores8-Core
Memory
Installed memory16 GB
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 ports2
HDMI ports2
Rear USB ports1
Ethernet port1
Rear audio jacks1
InputAC-DC - 30 W
Size & build
Product dimensions82 × 72 (92 mm with Antenna) x82 mm
Product weight0.45 gr
Main materialAluminum

Questions about this item

Will the soldered 16 GB LPDDR5 memory need replacing later?

The 16 GB LPDDR5 is soldered and cannot be upgraded; no memory replacement is possible.

What limits performance first during sustained loads on the i3-N300?

The 6 W TDP and fanless aluminium chassis throttle the 8 cores before thermals become critical.

How much heat and noise does the fanless 30 W unit produce running all day?

Silent operation with surface temperatures staying warm but safe thanks to the aluminium shell.

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