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Small black mini desktop PC with compact square form factor

MSI

MSI Cubi 5 12M-445US desktop PC i5-1235U 16GB 500GB

SKU CH-XB9S-RRT66 MPN Cubi 5 12M-445US

A mini desktop with a 10-core i5-1235U, 16 GB DDR4 3200, 500 GB M.2 NVMe, dual LAN, Wi-Fi 6E, Bluetooth 5.3 and ThunderBOLT 4, running Windows 11 Pro

  • TypeStudent / Home Office
  • Form FactorMini PC
  • UsageConsumer
  • ColorBlack
  • ProcessorIntel Core i5-1235U
  • Processor Main Features64 bit 10-Core Processor
  • 10-core Intel Core i5-1235U handles multitasking smoothly
  • 16 GB DDR4 3200 memory supports demanding applications
  • 500 GB M.2 NVMe SSD provides fast storage access
  • Dual LAN plus Wi-Fi 6E and Bluetooth 5.3 ensure flexible connectivity
  • Windows 11 Pro pre-installed for professional features

Compact desktop for home and office

The MSI Cubi 5 12M-445US is a Mini PC built around an Intel Core i5-1235U processor with 10 cores and 12 MB L3 cache. It ships with 16 GB DDR4 3200 memory in a dual-channel 8 GB x 2 configuration and a 500 GB M.2 NVMe drive. Windows 11 Pro is pre-installed and graphics are handled by integrated Intel Iris Xe Graphics.

Suits space-constrained desks

This system fits students, home-office workers and anyone who needs two Gigabit Ethernet ports plus Wi-Fi 6E and Bluetooth 5.3 in a small black chassis. The 65 W power supply and front ThunderBOLT 4 Type-C port support simple docking. Buyers who want discrete graphics, internal drive bays or user-accessible memory slots should look at larger form factors.

16 GB soldered DDR4 3200 with no free slots

The memory is populated as 8 GB x 2 across both SO-DIMM sockets, leaving zero available slots. Maximum supported capacity is 64 GB, so any future upgrade requires replacing both modules. This constraint decides whether the PC can meet workloads that demand more than the factory 16 GB.

Highlights

  • 10-core Intel Core i5-1235U handles multitasking smoothly
  • 16 GB DDR4 3200 memory supports demanding applications
  • 500 GB M.2 NVMe SSD provides fast storage access
  • Dual LAN plus Wi-Fi 6E and Bluetooth 5.3 ensure flexible connectivity
  • Windows 11 Pro pre-installed for professional features

Specifications

BrandMSI
ModelCubi 5 12M-445US
TypeStudent / Home Office
Form FactorMini PC
UsageConsumer
ColorBlack
ProcessorIntel Core i5-1235U
Processor Main Features64 bit 10-Core Processor
Cache Per Processor12 MB L3 Cache
Memory16 GB DDR4 3200
Storage500 GB M.2 NVMe
GraphicsIntel Iris Xe Graphics
EthernetGigabit Ethernet
Power Supply65W
Operating SystemWindows 11 Pro
CPU TypeIntel Core i5 12th Gen
CPU NameIntel Core i5-1235U
L3 Cache Per CPU12 MB
CPU Main Features64 bit 10-Core Processor
GPU/VGA TypeIntel Iris Xe Graphics
Graphics InterfaceIntegrated video
Memory Capacity16GB DDR4
Memory SpeedDDR4 3200
Memory Spec8 GB x 2
Memory Slot (Total)2
Memory Slot (Available)0
Maximum Memory Supported64 GB
SSD500GB
Storage Spec500 GB M.2 NVMe
Optical Drive TypeNo
LAN Chipset1 x Realtek RTL8111H
1 x Realtek RTL8125BG-CG
LAN Speed10/100/1000Mbps
WLAN802.11ax Wireless LAN
WiFi GenerationWi-Fi 6E
BluetoothBluetooth 5.3
Front USB1 x ThunderBolt4 Type-C
2 x USB 3.2 Gen2 Type-A
Front Audio Ports1 x Mic-in / Headphone-out combo
Rear USB2 x USB 3.2 Gen 2 Type-A (rear)
Internal Bays1 x 2.5" SSD/HDD
Dimensions (H x W x D)2.11" x 4.88" x 4.88"
Weight3.09 lbs.
Shipping weight1.27 kg
Package size221 × 208 × 97 mm

Questions about this item

Does the 65 W power adapter use a standard barrel plug or a proprietary connector?

The 65 W adapter ships with a standard barrel connector that plugs directly into the rear DC-in jack.

Which screw secures the M.2 2280 NVMe drive, and what length screw does the standoff need?

A single M2 × 3 mm screw holds the 500 GB M.2 NVMe drive; the standoff is pre-installed at the 2280 position.

Can the two 8 GB DDR4 3200 SO-DIMMs be replaced with 32 GB modules to reach the 64 GB limit?

Yes, both slots are occupied by 8 GB sticks; swapping them for two 32 GB DDR4 3200 SO-DIMMs reaches the 64 GB maximum.

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