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Compact small-form-factor desktop tower in matte black finish with front USB-C and USB-A ports

HP

HP ProDesk 400 G9 SFF desktop PC, Intel Core i9-14900K, 16GB DDR5, 1TB NVMe SSD, Windows 11 Pro

SKU CH-BP3M-PAX17

Small-form-factor desktop with 24-core Intel Core i9-14900K, 16 GB DDR5, 1 TB NVMe, WiFi 6E, Bluetooth 5.3 and Windows 11 Pro

  • TypeBusiness Desktops & Workstations
  • Form FactorMini PC
  • UsageRetail
  • AudioSound card - Integrated
  • EthernetGigabit Ethernet
  • Power Supply180W
  • 24-core Intel Core i9-14900K reaches 6.0 GHz for demanding workloads
  • 16 GB DDR5 4800 memory with 64 GB maximum capacity
  • 1 TB PCIe NVMe SSD plus an open 3.5" bay for extra storage
  • Intel AX211 WiFi 6E and Bluetooth 5.3 for fast wireless connectivity
  • Compact small form factor includes HDMI 1.4b and DisplayPort 1.4a for dual monitors

Compact business desktop for intensive workloads

The HP ProDesk 400 G9 SFF delivers a 24-core Intel Core i9-14900K processor with speeds from 2.40 GHz to 6.0 GHz and 36 MB cache. Sixteen gigabytes of DDR5 4800 memory and a 1 TB PCIe NVMe SSD provide responsive performance for demanding professional applications. Integrated Intel UHD Graphics 770 drives up to two displays via HDMI 1.4b and DisplayPort 1.4a. Windows 11 Pro is pre-installed.

Verify expansion limits

The 180 W power supply and small form factor restrict add-in cards to low-profile designs. One PCI Express 4.0 x16 slot and one PCI Express 3.0 x1 slot are available for upgrades. Both DDR5 slots are occupied by the factory 16 GB kit; expanding to the 64 GB maximum requires replacing the existing modules. A single 3.5-inch drive bay offers additional storage capacity. No optical drive is fitted.

Efficient cooling within a tight thermal envelope

The 180 W power supply defines the system’s sustained power draw, keeping heat output modest for a 24-core CPU. Integrated graphics eliminate the noise and power overhead of a discrete card. Fan speed scales with workload, remaining quiet during typical office tasks and increasing only under prolonged heavy compute loads. Gigabit Ethernet, WiFi 6E and Bluetooth 5.3 maintain connectivity without adding thermal load.

Highlights

  • 24-core Intel Core i9-14900K reaches 6.0 GHz for demanding workloads
  • 16 GB DDR5 4800 memory with 64 GB maximum capacity
  • 1 TB PCIe NVMe SSD plus an open 3.5" bay for extra storage
  • Intel AX211 WiFi 6E and Bluetooth 5.3 for fast wireless connectivity
  • Compact small form factor includes HDMI 1.4b and DisplayPort 1.4a for dual monitors

Specifications

Seriespro series
Model400 SFF G9
TypeBusiness Desktops & Workstations
Form FactorMini PC
UsageRetail
AudioSound card - Integrated
EthernetGigabit Ethernet
Power Supply180W
MonitorMonitor not included
Operating SystemWindows 11 Pro
Windows 11Ready
CPU TypeIntel Core i9 14th Gen
GPU/VGA TypeIntel UHD Graphics 770
Graphics InterfacePCI Express 2.0 x16
Memory Capacity16GB DDR5
Memory SpeedDDR5 4800
Memory Slots (Available/Total)0
Maximum Memory Supported64 GB
SSD1 TB PCIe
HDDNo
Screen SizeN/A
Audio ChipsetIntegrated
LAN ChipsetIntegrated
LAN Speed10/100/1000Mbps
WLAN802.11ax Wireless LAN
WiFi GenerationWi-Fi 6
BluetoothBluetooth 5.3
Front USB3x USB-A 3.2, 1x USB-C 3.2
Front Audio Ports1
Video Ports1 Display Port, 1 HDMI
Rear USB2x USB-A 2.0, 3x USB-A 3.2
RJ451 port
Keyboard TypeWired Keyboard
Mouse TypeWired Mouse
Speaker ConfigurationInternal Speaker

Questions about this item

Does the HP ProDesk 400 G9 SFF include a keyboard and mouse, or do I need to buy them separately?

The box contains a USB keyboard and mouse plus the power cable; a monitor is not included.

Should I choose the 16 GB DDR5 4800 configuration or add more memory later?

The system ships with 16 GB DDR5 4800 in two slots and supports up to 64 GB total, so you can add modules later if workloads demand it.

What does the Intel Core i9-14900K 24-core 6.0 GHz rating mean for everyday performance in this SFF?

The 24-core processor reaches 6.0 GHz boost clocks within the 180 W power supply, delivering strong multi-threaded speed for business applications while the compact chassis manages thermals.

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