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

HP

HP ProDesk 400 G9 SFF i9-14900K 64GB DDR5 4TB NVMe Windows 11 Pro

SKU CH-A449-WB6X9

A compact desktop with a 24-core Intel Core i9-14900K, 64GB DDR5, 4TB NVMe SSD, WiFi 6E and Bluetooth 5.3 in a small form factor

  • 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
  • 64 GB DDR5 4800 memory handles heavy multitasking without slowdown
  • 4 TB NVMe SSD stores large projects and boots in seconds
  • WiFi 6E and Bluetooth 5.3 give fast, stable wireless connections
  • Small form factor fits tight spaces while supporting dual monitors

Compact Business Desktop

The HP ProDesk 400 G9 SFF packs a 24-core Intel Core i9-14900K processor with 64GB of DDR5 4800 memory and a 4TB PCIe NVMe drive into a small form factor chassis. It ships with Windows 11 Pro and is aimed at offices that need high single-thread speed and large local storage without a full-size tower.

Connectivity and Expansion

The front panel provides three USB-A 3.2 ports, one USB-C 3.2 port and a universal audio jack while the rear adds three USB-A 3.2, two USB 2.0, HDMI 1.4b, DisplayPort 1.4a, Gigabit Ethernet, audio in and out. Dual-monitor support is native and an internal 3.5-inch bay plus a PCI Express 4.0 x16 slot and a PCI Express 3.0 x1 slot allow further storage or add-in cards.

Thermals and Power

A 180-watt power supply feeds the CPU which spans 2.40 to 6.0 GHz across performance and efficient cores alongside integrated Intel UHD Graphics 770. WiFi 6E and Bluetooth 5.3 handle wireless duties while the compact case relies on internal airflow to manage heat during typical business workloads.

Highlights

  • 24-core Intel Core i9-14900K reaches 6.0 GHz for demanding workloads
  • 64 GB DDR5 4800 memory handles heavy multitasking without slowdown
  • 4 TB NVMe SSD stores large projects and boots in seconds
  • WiFi 6E and Bluetooth 5.3 give fast, stable wireless connections
  • Small form factor fits tight spaces while supporting 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 Capacity64GB DDR5
Memory SpeedDDR5 4800
Memory Slots (Available/Total)0
Maximum Memory Supported64 GB
SSD4 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

What video standards do the HDMI 1.4b and DisplayPort 1.4a ports use?

The system provides one HDMI 1.4b port and one DisplayPort 1.4a port for dual-monitor support, driven by the integrated Intel UHD Graphics 770.

Which storage bays and expansion slots are available inside the Small Form Factor chassis?

The chassis includes one 3.5-inch hard-drive bay, one PCI Express 4.0 x16 slot and one PCI Express 3.0 x1 slot for add-in cards.

How is the operating system activated after the first boot, and what step is often missed?

Windows 11 Pro activates automatically once the PC connects to the internet; skipping the network setup during the out-of-box experience prevents activation.

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