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Compact black Mini PC, small square chassis

HP

HP Pro Mini 400 G9 desktop PC i5-14500T 16 GB DDR5 512 GB NVMe Windows 11 Pro DQ5N8AT#ABA

SKU CH-M5PZ-T0MX1 MPN DQ5N8AT#ABA

A compact desktop with an Intel Core i5 processor, 16 GB DDR5 memory, 512 GB NVMe storage and Windows 11 Pro

  • Form FactorMini PC
  • ColorJack Black
  • Memory16 GB DDR5
  • Storage512 GB SSD
  • GraphicsIntel UHD Graphics 770
  • Power Supply90 W
  • Compact Mini PC saves desk space
  • Intel Core i5-14500T with 14 cores handles multitasking
  • 16 GB DDR5 memory runs demanding applications
  • 512 GB NVMe SSD boots Windows 11 Pro fast
  • Wi-Fi 6E and Intel UHD Graphics 770 support modern connectivity

HP Pro Mini 400 G9 Mini PC

The HP Pro Mini 400 G9 is a compact desktop computer built around an Intel Core i5-14500T processor with 16 GB of DDR5 memory and a 512 GB PCIe NVMe SSD. It ships with Windows 11 Pro and uses Intel UHD Graphics 770 for display output, powered by a 90 W supply in a Jack Black chassis.

Suits office workers needing a small footprint

This system fits users who want a space-saving PC for general productivity, web browsing and video conferencing with Wi-Fi 6E connectivity. Buyers who need discrete graphics performance for gaming or rendering, or those requiring multiple internal storage bays, should look at larger form factors.

16 GB DDR5 memory soldered

The 16 GB DDR5 memory is the key specification that determines suitability; it cannot be upgraded after purchase so the buyer must be certain this capacity meets their workload requirements.

Highlights

  • Compact Mini PC saves desk space
  • Intel Core i5-14500T with 14 cores handles multitasking
  • 16 GB DDR5 memory runs demanding applications
  • 512 GB NVMe SSD boots Windows 11 Pro fast
  • Wi-Fi 6E and Intel UHD Graphics 770 support modern connectivity

Specifications

BrandHP
SeriesPro Mini 400 G9
ModelPro Mini 400 G9
Part NumberDQ5N8AT#ABA
Form FactorMini PC
ColorJack Black
Memory16 GB DDR5
Storage512 GB SSD
GraphicsIntel UHD Graphics 770
Power Supply90 W
KeyboardEnglish
Operating SystemWindows 11 Pro
CPU TypeIntel Core i5
SSD512 GB PCIe NVMe
Shipping weight2.74 kg
Package size500 × 236 × 132 mm

Questions about this item

How do I install the 512 GB PCIe NVMe SSD in the Pro Mini 400 G9, and what step do people often miss?

The M.2 slot is inside the chassis; remove the bottom cover, insert the drive at an angle, then secure it with the screw — the step often missed is enabling the NVMe controller in BIOS before cloning or installing Windows.

What maintenance or replacement will the 90 W power supply need later?

The external 90 W adapter is the only field-replaceable power part; keep its vents clear and replace the unit if the barrel connector becomes loose or output voltage drifts.

What limit appears first on the Intel UHD Graphics 770 during sustained workloads?

The 90 W power budget caps combined CPU and GPU turbo, so graphics clocks throttle first once the package hits its thermal ceiling.

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