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Small black desktop box 17.7 by 17.5 by 3.4 cm with wired keyboard and mouse

HP

HP Pro 400 G9 Mini PC Core i3-13100T 16GB 512GB NVMe Windows 11 Pro

SKU CH-VGJ7-89N10

A compact Mini PC with a quad-core Intel i3-13100T, 16 GB DDR4, 512 GB NVMe storage, Wi-Fi 6E and Windows 11 Pro

  • Screen sizeNo Screen
  • ProcessorIntel Core
  • Memory size16 GB DDR4
  • Storage drive512 GB
  • GraphicsIntel UHD Graphics
  • CPUIntel Core i3-13100T
  • Quad-core Intel Core i3-13100T reaches 4.2 GHz turbo for responsive multitasking
  • 16 GB DDR4 memory keeps multiple business applications running smoothly
  • 512 GB NVMe SSD delivers fast boot and quick file access
  • Wi-Fi 6E plus Gigabit Ethernet provides flexible, high-speed connectivity
  • Compact 17.7 x 17.5 x 3.4 cm mini chassis fits tight workspaces

Compact Desktop for Home and Office

The HP Pro 400 G9 Mini is a new desktop computer built for students and home-office users who need a small, quiet system for everyday tasks. It ships with Windows 11 Pro, a wired keyboard and a wired mouse so it is ready to use straight away. The 3.4 cm thin chassis fits behind a monitor or on a crowded desk without taking up valuable space.

512 GB NVMe SSD for Fast Boot and Load Times

The single specification that decides suitability is the 512 GB NVMe solid-state drive, which provides quick operating-system starts and responsive application launches. Users who work with large media libraries or multiple virtual machines will find the capacity limiting and should plan for external or cloud storage. No additional internal drive bays are mentioned in the specifications.

Simple Setup with External Ports Only

Installation consists of connecting power, a display via HDMI or DisplayPort, and the included wired peripherals; no case opening or component seating is required. The 90 W power supply is integrated into the compact body, so there is no external brick to route. Buyers who want to upgrade memory or storage later must open the chassis themselves, which may be difficult in the tight Mini form factor.

How it compares

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

Price $594.99
Pricier than about 57% of the 14,711 comparable items (median $494.99).
Memory size 16 GB DDR4
Typical for this category: the median of 5,840 items is 16 GB.
RAM capacity 16 GB DDR4
Typical for this category: the median of 13,125 items is 16 GB.

Specifications

Product
Brand nameHP
Model namePro 400 G9
Part numberDT5A8UA#ABA
Product typeStudent / Home Office
Recommended useConsumer
Processor
ProcessorIntel Core
CPUIntel Core i3-13100T
Turbo clock speed4.2 GHz
Memory
Memory size16 GB DDR4
RAM capacity16 GB DDR4
RAM type and speedDDR4 3200
Memory configuration8 GB x 2
Total memory slots2
Free memory slots0
Memory slots0/2
Max supported RAM64 GB
Storage
Storage drive512 GB
SSD storage512 GB
Hard driveNo
Storage configuration512 GB NVMe SSD
Optical driveNo
Display
Screen sizeNo Screen
Graphics
GraphicsIntel UHD Graphics
GPU modelIntel UHD Graphics
GPU interfaceIntegrated video
Audio & video
SoundSound card - Integrated
Connectivity
Wi-Fi standardWi-Fi 6E
Network speed10/100/1000 Mbit/s
Wired networkGigabit Ethernet
Wireless adapterWi-Fi 6E (802.11ax)
Ethernet controllerIntegrated
Wi-Fi802.11ax Wireless LAN
Bluetooth support5.3
Ports & slots
Front USB ports3
Front audio jacks1
Video connectors1 x HDMI, 2 x DisplayPort
Rear USB ports3
Ethernet port1 port
Power
Power supply90 W
Size & build
Overall dimensions6.89 × 6.97 × 1.34 in
Product weight3.13 lb (1.42 kg)
Compatibility
Windows 11 supportReady
In the box
Included monitorNot included
Bundled mouseWired Mouse
Pointing deviceWired Mouse
Software
Operating systemWindows 11 Pro
More details
KeyboardWired Keyboard
Keyboard typeWired Keyboard

Questions about this item

What does the 4.2 GHz turbo frequency mean for everyday workloads on this Core i3-13100T?

The quad-core processor reaches 4.2 GHz when thermal headroom allows, giving short bursts of extra speed for snappy app launches and web browsing before settling back to the 2.5 GHz base.

How does the Wi-Fi 6E (802.11ax) connection perform in a crowded office?

Wi-Fi 6E adds the 6 GHz band, reducing interference from neighbouring networks and keeping latency low for video calls and cloud file syncs.

Will the 17.7 x 17.5 x 3.4 cm chassis fit behind a standard VESA-mounted monitor?

Yes, the Mini form factor is designed for VESA mounting brackets, so it tucks neatly behind compatible displays without extra desk space.

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