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Small black desktop tower with front USB-C and USB-A ports

HP

HP ProDesk 400 G9 SFF desktop PC i7-14700 16GB DDR5 512GB

SKU CH-H0JK-SBYBT

Business desktop with 20-core Intel Core i7-14700, 16 GB DDR5, 512 GB SSD, triple 4K display support and Windows 11 Pro

  • TypeBusiness Desktops & Workstations
  • Form FactorSlim/Small Form Factor
  • UsageWork / Business
  • ColorBlack
  • Cooling SystemAir Cooling
  • Operating SystemWindows 11 Pro

Configuration 16GB RAM · 512GB SSD

  • 20-core Intel i7-14700 handles heavy workloads
  • 16GB DDR5 memory runs at 4800 MT/s
  • 512GB SSD provides fast boot and load times
  • Triple 4K display support via DP and HDMI 1.4
  • Compact SFF chassis fits tight desk spaces

Business SFF desktop

The HP ProDesk 400 G9 is a small-form-factor desktop built for office and professional workloads. It ships with Windows 11 Pro and a wired keyboard and mouse combo so it is ready to deploy immediately. The Intel Core i7-14700 processor provides 20 cores and 28 threads for multi-tasking across business applications.

Thermals and power

Air cooling handles the 2.10 GHz base clock and 5.40 GHz turbo frequency within the compact 10.6 x 3.7 x 12.1 in chassis. The system weighs 9.25 lbs and runs on standard mains power without requiring an oversized supply. Fan noise stays low during typical office tasks such as document editing and video calls.

Memory and storage fit

The board accepts DDR5 4800 memory up to 64 GB; the unit arrives with 16 GB configured as 8 GB x 2. Storage uses an M.2 slot that supports NVMe drives up to 2 TB; a 512 GB drive is installed. Buyers who need more than 64 GB of RAM or more than 2 TB of NVMe storage should choose a different platform.

Highlights

  • 20-core Intel i7-14700 handles heavy workloads
  • 16GB DDR5 memory runs at 4800 MT/s
  • 512GB SSD provides fast boot and load times
  • Triple 4K display support via DP and HDMI 1.4
  • Compact SFF chassis fits tight desk spaces

Specifications

BrandHP
SeriesProDesk
Model400
TypeBusiness Desktops & Workstations
Form FactorSlim/Small Form Factor
UsageWork / Business
ColorBlack
Cooling SystemAir Cooling
Operating SystemWindows 11 Pro
Windows 11Ready
CPU TypeIntel Core i7 14th Gen
CPU NameIntel Core i7-14700
CPU Base Frequency2.10GHz
Turbo Frequency5.40GHz
L3 Cache Per CPU33 MB
CPU Main Features64 bit 20-Core Processor
GPU/VGA TypeIntel UHD Graphics 770
Memory Capacity16GB DDR5
Memory SpeedDDR5 4800
Memory Spec8 GB x 2
Memory Slot (Total)2
Memory Slot (Available)2
Memory Slots (Available/Total)2 total
Maximum Memory Supported128 GB
SSD512GB PCIe
Audio ChipsetIntegrated
LAN ChipsetIntegrated
LAN Speed10/100/1000Mbps
WLAN802.11ac Wireless LAN
WiFi GenerationWi-Fi 5
BluetoothYes
Front USB4
Front Audio Ports1
Video Ports1 Display Port, 1 HDMI
Rear USB5
RJ451 port
Rear Audio Ports1 port
Keyboard TypeWired Keyboard
Mouse TypeWired Mouse
Dimensions (H x W x D)12.1" x 10.6" x 3.7"
Weight9.25 LBs
Package TypeRetail

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

How do I install the dual-channel 16 GB DDR5 4800 memory kit, and which slot pairing do installers most often get wrong?

The system ships with two 8 GB DDR5 4800 modules pre-installed in the correct paired slots for dual-channel operation; if you add more memory later, populate the remaining slots as a matched pair to keep the 64 GB maximum supported.

Which component will need replacement first under continuous heavy workloads?

The air-cooling solution on the 20-core i7-14700 will reach its thermal limit before the 512 GB SSD or the 33 MB L3 cache, so sustained turbo at 5.4 GHz may throttle unless ambient temperature stays low.

What maintenance does the pre-installed Windows 11 Pro and 512 GB storage require over time?

Windows 11 Pro receives automatic security updates; the 512 GB drive has no user-serviceable parts, so plan a full backup before the drive reaches its write-endurance rating.

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