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Compact silver small form factor desktop tower with front USB ports and power button

HP

HP ProDesk 400 G9 SFF i9-14900K 32GB DDR5 1TB NVMe Windows 11 Pro

SKU CH-76ES-T3CB4

Compact small-form-factor desktop with a 24-core Intel Core i9-14900K, 32 GB DDR5 memory and a 1 TB NVMe solid-state drive, plus HDMI, DisplayPort, USB-C, WiFi 6E and Bluetooth 5.3

  • ProcessorIntel Core i9 14th Gen
  • RAM capacity32 GB DDR5
  • SSD storage1 TB PCIe
  • GraphicsIntel UHD Graphics 770
  • Wi-Fi standardWi-Fi 6
  • Operating systemWindows 11 Pro
  • Intel Core i9-14900K with 24 cores reaches up to 6.0 GHz for demanding workloads
  • 32 GB DDR5 4800 memory handles multitasking and large datasets smoothly
  • 1 TB NVMe SSD provides fast boot and application load times
  • Dual display support via HDMI 1.4b and DisplayPort 1.4a expands workspace flexibility
  • WiFi 6E and Bluetooth 5.3 deliver fast, stable wireless connectivity

Compact SFF business desktop

The HP ProDesk 400 G9 SFF delivers a 24-core Intel Core i9-14900K processor with 32 GB of DDR5 4800 memory and a 1 TB PCIe NVMe solid-state drive. Windows 11 Pro is pre-installed on a platform designed for commercial deployment. The small form factor chassis fits constrained workspaces while supporting dual-monitor output through HDMI 1.4b and DisplayPort 1.4a.

Thermals and 180 W power envelope

A 180 W internal supply feeds the processor, integrated Intel UHD Graphics 770, memory and storage within the compact enclosure. Intel UHD Graphics 770 operates without a discrete card, reducing total heat load and acoustic output during typical office workloads. Gigabit Ethernet, WiFi 6E and Bluetooth 5.3 connectivity are integrated on the motherboard, avoiding additional expansion cards that would increase power draw. The single PCI Express 4.0 x16 slot remains available for future upgrades if thermal headroom allows.

Included keyboard, mouse and expansion room

A USB keyboard and mouse ship in the box alongside the power cable, so the system is ready for immediate setup. Front-facing ports include three USB-A 3.2 and one USB-C 3.2 for quick peripheral access. Rear I/O adds two USB-A 2.0, three USB-A 3.2, audio in/out and RJ-45. One 3.5-inch hard-drive bay and a PCI Express 3.0 x1 slot provide internal expansion without changing the external footprint.

How it compares

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

Price $1,271.99
Pricier than about 83% of the 14,711 comparable items (median $494.99).
RAM capacity 32 GB DDR5
Higher than about 70% of the 13,125 comparable items (median 16 GB).
SSD storage 1 TB PCIe
Higher than about 60% of the 11,342 comparable items (median 512 GB).

Specifications

Product
Product linePro series
Model name400 SFF G9
Product typeBusiness Desktops & Workstations
Recommended useRetail
Processor
ProcessorIntel Core i9 14th Gen
Memory
RAM capacity32 GB DDR5
RAM type and speedDDR5 4800
Memory slots0
Max supported RAM64 GB
Storage
SSD storage1 TB PCIe
Hard driveNo
Graphics
GraphicsIntel UHD Graphics 770
GPU interfacePCI Express 2.0 x16
Audio & video
SoundSound card - Integrated
Audio chipIntegrated
Speaker setupInternal Speaker
Connectivity
Wi-Fi standardWi-Fi 6
Network speed10/100/1000 Mbit/s
Wired networkGigabit Ethernet
Ethernet controllerIntegrated
Wi-Fi802.11ax Wireless LAN
Bluetooth support5.3
Ports & slots
Front USB ports3x USB-A 3.2, 1x USB-C 3.2
Front audio jacks1
Video connectors1 Display Port, 1 HDMI
Rear USB ports2x USB-A 2.0, 3x USB-A 3.2
Ethernet port1 port
Power
Power supply180 W
Size & build
Form factorMini PC
Compatibility
Windows 11 supportReady
In the box
Included monitorNot included
Pointing deviceWired Mouse
Software
Operating systemWindows 11 Pro
More details
Keyboard typeWired Keyboard

Questions about this item

How do I add a second drive to the 3.5-inch bay on this HP ProDesk 400 G9 SFF?

Fit a 3.5-inch drive into the available bay and connect the data and power cables already routed inside the chassis; the step most people miss is securing the drive with the tool-less latch before closing the cover.

Which memory modules should I buy if I want to reach the 64 GB maximum later?

Purchase two DDR5 4800 SO-DIMMs; both slots are occupied by the factory 32 GB kit, so a full replacement is required to hit the 64 GB limit.

Will the 180 W power supply sustain the i9-14900K at its 6.0 GHz turbo under prolonged load?

The 180 W unit is sized for the configured i9-14900K and integrated UHD 770 graphics; sustained all-core turbo at 6.0 GHz may hit the power ceiling first, causing the CPU to throttle to stay within the supply limit.

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