HP Pro Mini 400 G9 Mini PC, Core i7-12700T, 16GB DDR4, 1TB SSD

The HP Pro Mini 400 G9 is a compact desktop listed with an Intel Core i7-12700T, 16GB DDR4 memory, 1TB SSD, and Windows 11 Pro. Its small stated footprint and DisplayPort/HDMI connectivity suit desk-based productivity, while conflicting listing details mean buyers should verify the exact configuration and bundle before ordering.

At a glance

Compact mini desktop with stated dimensions of 6.97 x 6.89 x 1.34 inches.
The listing names DisplayPort and HDMI outputs and claims support for up to three displays.
Windows 11 Pro is listed as the operating system.

Price

$1,038.99Save 39%

Reference price: ~~$1,699.00~~

Price checked: Nov 14, 2026

View offer Ahead of Black FridayExplore the selection

Pros and cons

Pros

Small dimensions can help preserve desk space in a home or office setup.
The listed integrated Intel UHD 770 graphics and DisplayPort/HDMI outputs support a multi-display office setup, subject to confirming the port configuration.

Technical specifications

20 specifications

Identity
Brand	HP
Model	Pro Mini

Computing specifications
Processor	Core i7-12700T
Processor speed	1.4 GHz
Maximum CPU speed	4.7 GHz
Processor count	12
Cache	25 MB
Installed memory	16 GB
Memory technology	DDR4
Maximum memory	64 GB
Storage type	SSD
Graphics	Intel UHD 770 Graphics
Operating system	Windows 11 Pro

Connectivity and controls
Connections listed	Bluetooth, DisplayPort, Ethernet, HDMI, USB, Wi-Fi
Video outputs listed	DisplayPort 1.4, HDMI 2.1
USB ports	6
HDMI ports	1
Component outputs	3

Dimensions and installation
Dimensions listed	6.97 x 6.89 x 1.34 inches
Color	Jet Black

What to know before buying

Listing details to confirm

The listing contains material inconsistencies: storage is titled and described as a 1TB SSD, but the technical details label storage capacity as 16 GB. HDMI and DisplayPort versions, port counts, and dimensions also differ between detail fields and the description. Triple-display support, wireless versions, and the precise RAM configuration are not consistently confirmed. Verify the exact configuration and ports for the selected listing before purchase.

What’s in the box

Wired keyboardCheck selected pack
MouseCheck selected pack

Check which accessories are included in your selected pack before buying.

Who is it for?

A good fit for

Office and study users who want a compact Windows 11 Pro desktop for general productivity.
Buyers whose setup benefits from a small chassis and multiple display connections, after confirming the selected unit's outputs.

Less suited to

Buyers who need a clearly verified storage capacity, port layout, or multi-monitor configuration before ordering.
Gaming or graphics-focused users seeking a dedicated graphics card. The listing specifies integrated graphics.

HP Pro Mini 400 G9 Mini PC, Core i7-12700T, 16GB DDR4, 1TB SSD · photo 2 — Additional product photo 2

Customer reviews on Amazon

5 / 5 · 8 ratings

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4 stars0%0%
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The supplied evidence contains aggregate ratings only and no customer-comment summary. The ratings shown are uniformly five-star in a small sample, which is a positive signal but cannot identify what buyers liked or establish performance, reliability, or satisfaction across broader use.

Frequently asked questions

How much storage does this HP Pro Mini have?

The title and description claim a 1TB SSD, but the technical details list storage capacity as 16 GB. Confirm the selected listing's actual storage before buying.

Can it run three monitors?

The feature text claims support for up to three displays, and the listing names HDMI and DisplayPort outputs. Port counts and versions conflict across the listing, so verify the exact outputs.

Does the listing include a keyboard and mouse?

The feature text claims a wired keyboard and mouse, but there is no explicit package inventory. Treat the bundle contents as unconfirmed and check the selected listing.