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Small black mini desktop PC with compact square chassis

HP

HP Pro Mini 400 G9 Desktop PC i5-14500T 16 GB 256 GB SSD Windows 11 Pro

SKU CH-QA0Y-7ZAS9

A compact business desktop with a 14-core Intel Core i5-14500T, 16 GB RAM and a 256 GB SSD running Windows 11 Pro

  • Included monitorNot included
  • Product typeAll-in-One PC
  • Compact mini desktop saves desk space
  • 14-core Intel Core i5-14500T reaches 4.8 GHz turbo
  • 16 GB RAM handles multitasking smoothly
  • 256 GB SSD provides fast boot and load times
  • Windows 11 Pro enables business-grade security

Compact Business Desktop

The HP Pro Mini 400 G9 is a mini desktop PC built for business environments. It ships with Windows 11 Pro and an Intel Core i5-14500T processor reaching 4.8 GHz max turbo frequency. The system includes 16 GB of memory and a 256 GB solid-state drive in a black chassis measuring 1.340 by 6.970 by 6.890 inches.

Upgrade From Older Office PCs

This unit replaces aging tower workstations where desk space is limited and maintenance access matters. The jump is worthwhile when moving from mechanical drives to solid-state storage and from prior-generation processors to the 24 MB cache design. Buyers who need multiple internal drive bays or full-height expansion slots should consider a larger form factor.

Mini Form Factor Constraints

The compact dimensions restrict internal upgrades to low-profile components and limit the number of available expansion bays. Thermal headroom is defined by the small chassis volume, so sustained heavy workloads may throttle compared to larger desktops. External ports provide the primary path for adding storage, displays or peripherals beyond the base configuration.

How it compares

Measured against everything we stock in Tower & Compact Desktop PCs, at today’s prices. Recalculated every night.

Price $1,061.99
Pricier than about 79% of the 14,711 comparable items (median $494.99).

Specifications

Product
Model namePro Mini
Product typeAll-in-One PC
In the box
Included monitorNot included

Questions about this item

What are the exact dimensions of the HP Pro Mini 400 G9 chassis for desk or VESA mounting?

The mini desktop measures 1.340 inches high, 6.970 inches long and 6.890 inches wide, so verify your mount or shelf clearance against those figures.

How is the 256 GB SSD installed, and what step is often missed?

The drive slots into the internal M.2 socket; the step many miss is securing it with the tiny retention screw before replacing the cover.

Which component will need replacement first under heavy business use?

The 16 GB memory is soldered, so the 256 GB SSD is the only user-replaceable part likely to wear out first.

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