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Compact black small-form-factor desktop tower with front USB-C and USB-A ports, rear DisplayPort and HDMI

HP

HP ProDesk 400 G9 SFF i7-14700 16GB 2TB desktop PC

SKU CH-M4ST-9RD9P

A compact business desktop with a 20-core Intel Core i7-14700, 16 GB DDR5 memory and a 2 TB solid-state drive, ready for triple-monitor setups

  • ProcessorIntel Core i7 14th Gen
  • RAM capacity16 GB DDR5
  • SSD storage2 TB PCIe
  • GraphicsIntel UHD Graphics 770
  • CPU modelIntel Core i7-14700
  • Wi-Fi standardWi-Fi 5

Configuration 16GB RAM · 2TB SSD

  • Enterprise-grade speed with 20-core Intel Core i7-14700 processor
  • Seamless multitasking backed by 16GB high-bandwidth DDR5 memory
  • Extensive file storage on 2TB solid-state drive
  • Triple monitor productivity via DisplayPort and HDMI 1.4 outputs
  • Space-saving small form factor fits tight desks with built-in Wi-Fi 5

Business desktop for professional workloads

The HP ProDesk 400 G9 SFF runs Windows 11 Pro on an Intel Core i7-14700 processor with 20 cores and 28 threads. A base frequency of 2.1 GHz and turbo up to 5.4 GHz support demanding business applications. Sixteen gigabytes of DDR5 4800 memory and a 2 TB SSD provide fast boot times and responsive multitasking for office environments.

Small form factor with triple display support

The compact chassis measures 10.6 x 3.7 x 12.1 inches and weighs 9.25 lbs, fitting tight desk spaces. Rear HDMI 1.4 and DisplayPort outputs drive up to three independent 4K monitors for expanded productivity. Front USB Type-C and Type-A ports at 10 Gbps signaling rate plus rear USB ports at 5 Gbps and 480 Mbps connect peripherals without adapters. Built-in Wi-Fi 5 and RJ-45 handle network connectivity.

Suited for office deployments needing space

This configuration suits businesses that require a ready-to-use desktop with wired keyboard and mouse included. Integrated Intel UHD Graphics 770 handles standard business visuals but not GPU-accelerated workloads. The SFF layout limits internal expansion compared to tower formats. Buyers needing discrete graphics, greater memory capacity than 16 GB, or additional drive bays should consider larger chassis options.

How it compares

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

Price $874.99
Pricier than about 72% of the 14,711 comparable items (median $494.99).
RAM capacity 16 GB DDR5
Typical for this category: the median of 13,125 items is 16 GB.
SSD storage 2 TB PCIe
Higher than about 90% of the 11,342 comparable items (median 512 GB).

Specifications

Product
Brand nameHP
Product lineProDesk
Model name400
Product typeBusiness Desktops & Workstations
Recommended useWork / Business
Product colorBlack
Processor
ProcessorIntel Core i7 14th Gen
CPU modelIntel Core i7-14700
Turbo clock speed5.4 GHz
Base clock speed2.1 GHz
L3 cache per CPU33 MB
Memory
RAM capacity16 GB DDR5
RAM type and speedDDR5 4800
Memory configuration8 GB x 2
Total memory slots2
Free memory slots2
Memory slots2 total
Max supported RAM128 GB
Storage
SSD storage2 TB PCIe
Graphics
GraphicsIntel UHD Graphics 770
Audio & video
Audio chipIntegrated
Connectivity
Wi-Fi standardWi-Fi 5
Network speed10/100/1000 Mbit/s
Ethernet controllerIntegrated
Wi-Fi802.11ac Wireless LAN
Bluetooth supportYes
Ports & slots
Front USB ports4
Front audio jacks1
Video connectors1 Display Port, 1 HDMI
Rear USB ports5
Ethernet port1 port
Rear audio jacks1 port
Size & build
Form factorSlim/Small Form Factor
Overall dimensions12.1 in × 10.6 in × 3.7 in
Product weight9.25 lb (4.2 kg)
Compatibility
Windows 11 supportReady
In the box
Pointing deviceWired Mouse
Software
Operating systemWindows 11 Pro
More details
Cooling methodAir Cooling
Keyboard typeWired Keyboard

Other versions of this model

5 more in the same range

Questions about this item

Does the 20-core i7-14700 throttle under sustained full-load work?

The i7-14700 has a 2.10 GHz base frequency and can reach 5.40 GHz turbo; the SFF chassis relies on air cooling, so extended all-core workloads will run at lower clocks once the thermal limit is reached.

How loud and hot does the air-cooled SFF get when running all day?

Air cooling in the small-form-factor case keeps the i7-14700 within its thermal envelope; fan speed rises with load, so sustained heavy tasks produce noticeable airflow noise and warm exhaust.

Which DDR5 modules do I already need to populate the two empty slots?

The system ships with 16 GB as 8 GB × 2 DDR5 4800; the board supports up to 64 GB total, so any additional sticks must be DDR5 4800 SO-DIMMs to match the installed pair.

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