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Compact silver mini desktop box, small square footprint, front power button and ports, rear connectivity panel

HP

HP Pro 400 G9 Mini PC i3-13100T 8GB DDR4 2TB NVMe Wi-Fi 6E Windows 11 Pro

SKU CH-9HTP-CGHZ1

A compact Mini PC with a quad-core Intel Core i3-13100T up to 4.2 GHz, 8 GB DDR4, 2 TB NVMe storage, Wi-Fi 6E and Windows 11 Pro

  • TypeStudent / Home Office
  • UsageConsumer
  • ProcessorIntel Core i3-13100T
  • Processor Main Features64 bit Quad-Core Processor
  • Memory8GB DDR4
  • Storage2TB
  • Compact Mini PC fits tight spaces at 17.7 x 17.5 x 3.4 cm
  • Quad-core i3-13100T reaches 4.2 GHz turbo for responsive daily tasks
  • 8 GB DDR4 memory keeps multiple apps running smoothly
  • 2 TB NVMe SSD provides fast boot and ample storage
  • Wi-Fi 6E and Gigabit Ethernet give flexible, reliable connectivity

Compact desktop for everyday tasks

The HP Pro 400 G9 Mini PC fits on any desk at just 17.7 x 17.5 x 3.4 cm. An Intel Core i3-13100T processor with four cores runs at 2.5 GHz base and 4.2 GHz turbo. 8GB DDR4 memory and a 2TB NVMe drive handle documents, web apps and light media work. Windows 11 Pro is pre-installed.

Quiet operation and modest power draw

A 90 W power supply feeds the system, keeping energy use low for daily office hours. Integrated Intel UHD Graphics produces no separate fan noise. The small chassis relies on passive airflow for typical workloads. Gigabit Ethernet and Wi-Fi 6E (802.11ax) connect without adding audible components.

Steps up from older small-form PCs

This unit replaces ageing mini desktops that still use mechanical drives or slower dual-core chips. The jump is worth it when boot speed and snappy multitasking matter more than discrete graphics power. Buyers who need a second video card or more than 8GB RAM should look elsewhere.

Highlights

  • Compact Mini PC fits tight spaces at 17.7 x 17.5 x 3.4 cm
  • Quad-core i3-13100T reaches 4.2 GHz turbo for responsive daily tasks
  • 8 GB DDR4 memory keeps multiple apps running smoothly
  • 2 TB NVMe SSD provides fast boot and ample storage
  • Wi-Fi 6E and Gigabit Ethernet give flexible, reliable connectivity

Specifications

BrandHP
ModelPro 400 G9
Part NumberDT5A8UA#ABA
TypeStudent / Home Office
UsageConsumer
ProcessorIntel Core i3-13100T
Processor Main Features64 bit Quad-Core Processor
Memory8GB DDR4
Storage2TB
AudioSound card - Integrated
EthernetGigabit Ethernet
Wireless CardWi-Fi 6E (802.11ax)
Power Supply90W
MonitorMonitor not included
KeyboardWired Keyboard
MouseWired Mouse
Operating SystemWindows 11 Pro
Windows 11Ready
CPU TypeIntel Core
Turbo Frequency4.2GHz
GPU/VGA TypeIntel UHD Graphics
Graphics CardIntel UHD Graphics
Graphics InterfaceIntegrated video
Memory Capacity8GB DDR4
Memory SpeedDDR4 3200
Memory Spec8 GB x 1
Memory Slot (Total)2
Memory Slot (Available)1
Memory Slots (Available/Total)1/2
Maximum Memory Supported64 GB
SSD2 TB
HDDNo
Storage Spec2TB NVMe SSD
Optical Drive TypeNo
Screen SizeNo Screen
LAN ChipsetIntegrated
LAN Speed10/100/1000Mbps
WLAN802.11ax Wireless LAN
WiFi GenerationWi-Fi 6E
BluetoothBluetooth 5.3
Front USB3
Front Audio Ports1
Video Ports1 x HDMI, 2 x DisplayPort
Rear USB3
RJ451 port
Keyboard TypeWired Keyboard
Mouse TypeWired Mouse
Dimensions (H x W x D)6.89 x 6.97 x 1.34 in
Weight3.13 lb
Package TypeRetail

Questions about this item

How do I install the DDR4 memory in the HP Pro 400 G9 Mini, and what step is often missed?

Open the chassis, align the DDR4 SO-DIMM notch with the slot key, press firmly until the retention clips click, then verify 8GB appears in BIOS before closing the case.

What maintenance or replacement will the 2TB NVMe SSD need over time?

The NVMe SSD has no moving parts; keep firmware updated via HP Support Assistant and monitor SMART health — replace only if wear-level indicators approach end-of-life thresholds.

Which limit appears first during sustained loads on the 90W power supply and i3-13100T?

The 90W adapter caps total system draw, so the CPU will throttle from its 4.2GHz turbo to stay within the power budget before thermal limits are reached.

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