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Small black rectangular barebone mini PC, front USB-C and USB-A ports visible

MSI

MSI Cubi 5 12M-086BUS i3-1215U barebone mini PC

SKU CH-1TQ6-WMTM0 MPN Cubi 5 12M-086BUS

A barebone mini PC with a 6-core Intel Core i3-1215U, dual LAN, Wi-Fi 6E, dual Thunderbolt 4 and room for 64 GB of DDR4 memory

  • ProcessorIntel Core i3-1215U 6C/8T 10 MB Cache
  • ChipsetIntel SoC
  • Supported memoryNot Included - Supports 2x DDR4 2666 MHz SO-DIMM, up to 64 G
  • Maximum supported memory64 GB
  • Additional details1x 2.5 in HDD
  • Channel count1x Mic-in / Headphone-out combo N/A
  • Intel Core i3-1215U 6-core 8-thread processor handles multitasking smoothly
  • Supports up to 64 GB DDR4 2666 MHz SO-DIMM memory for heavy workloads
  • WIFI 6E AX 211 delivers fast, low-latency wireless connectivity
  • Dual LAN with 2.5 GbE and Gigabit ports ensures reliable wired networking
  • Thunderbolt 4 USB-C provides 40 Gbps bandwidth for docks and displays

Ready-to-build mini PC with Core i3-1215U

The MSI Cubi 5 12M-086BUS is a barebone mini desktop built around an Intel Core i3-1215U processor with six cores and eight threads. It arrives without memory, storage or an operating system so you can choose the components that match your workload. A 65 W power supply is included in the box.

Suits integrators and home-office users

This unit fits buyers who want a compact x86 platform they can configure with up to 64 GB of DDR4-2666 SO-DIMM memory and a 2.5-inch drive. It is not for users who need a second M.2 slot, discrete graphics or a pre-installed Windows licence.

Dual 2.5 GbE and 1 GbE LAN ports

Network connectivity relies on one Realtek RTL8125BG-CG controller for 2.5 GbE and one RTL8111H for 1 GbE, giving two wired ports in a chassis under one litre. Wireless is handled by a Wi-Fi 6E AX211 module.

How it compares

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

Price $292.99
Cheaper than about 82% 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 nameMSI
Model nameCubi 5 12M-086BUS
Part numberCubi 5 12M-086BUS
Processor
ProcessorIntel Core i3-1215U 6C/8T 10 MB Cache
ChipsetIntel SoC
Memory
Supported memoryNot Included - Supports 2x DDR4 2666 MHz SO-DIMM, up to 64 GB
Maximum supported memory64 GB
Audio & video
Channel count1x Mic-in / Headphone-out combo
N/A
Connectivity
LAN connection1x Realtek® RTL8111H
1x Realtek® RTL8125BG-CG
Wi-Fi standardWIFI 6E - AX 211
Power
Power supply65 W
Size & build
Shipping weight1.45 kg
Package size254 × 229 × 102 mm
More details
Additional details1x 2.5 in HDD

Questions about this item

Will the two DDR4 2666 MHz SO-DIMM slots need a RAM upgrade later?

The board accepts two DDR4 2666 MHz SO-DIMMs up to 64 GB total, so you can add or replace memory whenever your workload demands more capacity.

Does the 15 W TDP on the i3-1215U throttle first under sustained loads?

The processor is rated at 15 W TDP and the 65 W power supply is sized for that envelope, so thermal limits on the CPU package are the first ceiling you will hit during prolonged heavy work.

How loud or hot does the Cubi 5 get when it runs all day?

The 65 W adapter feeds a 15 W TDP chip with dual LAN, WIFI 6E and Thunderbolt 4 active, so the cooling fan stays at low RPM and chassis temperatures remain modest during continuous operation.

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