HP ProDesk 400 G9 SFF Desktop Computer

Name: HP ProDesk 400 G9 SFF Desktop Computer, Intel Core i9-14900K (Up to 6.0GHz), 32GB DDR5 RAM, 2TB PCIe SSD, Wi-Fi, HDMI, DP, 2-Monitor Support 4K
Brand: Unbranded
SKU: B0F1HFMJWZ

Status: HP ProDesk 400 G9 SFF Desktop Computer: Unavailable on Amazon as of 2026-10-21 16:16 UTC. SpecPicks has no in-stock listing with matching specs on file; the search below lists current offers. eBay sellers may still list this model new or used.

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Bottom line: The HP ProDesk 400 G9 SFF Desktop Computer is a specs-and-price decision rather than a crowd-consensus one in the home ai / computer lab category. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.

Unavailable on Amazon as of 2026-10-21 16:16 UTC

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Currently unavailable on Amazon. Not the same product — 3 in-stock alternatives:

Similar: HP ProDesk 400 G9 SFF Business Desktop — $848.98 on Amazon as of 2026-10-21 04:14 UTC (price may vary).

View Current Price — $848.98

Similar: HP Pro 400 G9 Mini Computer — $1,199.99 on Amazon as of 2026-10-21 04:29 UTC (price may vary).

View Current Price — $1,199.99

Similar: Dell OptiPlex 7020 MFF Micro Desktop Computer… — $1,399.00 on Amazon as of 2026-10-21 10:15 UTC (price may vary).

View Current Price — $1,399.00

Original listing (currently unavailable) → Compare to similar home ai / computer lab

By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-10-21

Mike Perry — Hardware researcher since 2014, focused on GPU performance across gaming, rendering, and local-LLM inference. Synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides. About the author →

Before you buy

Check the listed dimensions, connectors and platform compatibility against your setup before ordering
Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated

Manufacturer description

Processor: i9-14900K 4.4GHz Processor (upto 6.0 GHz, 32MB Cache, 24-Cores, 32-Threads)Storage: Up To 2TB PCIe SSD (Solid State Drive)Memory: Up To 128GB DDR5 RAM DIMMGraphics: Integrated Graphics Integrated GraphicsOperating System: Windows 11 Pro-64Connectivity:, Ethernet LAN (RJ-45)Camera: No WebcamInput/Output:, Black, USB Keyboard, USB MouseDisplay: No DisplayPorts Front : 1 headphone/microphone combo; 4 SuperSpeed USB Type-A 10Gbps signaling rate; 1 SuperSpeed USB Type-C 20Gbps signaling rateRear : 3 USB Type-A 5Gbps signaling rate; 1 HDMI 1.4b; 1 RJ-45; 1 audio line-in/line-out; 2…

SpecPicks Verdict

SpecPicks scored HP ProDesk 400 G9 SFF Desktop Computer using a rating × review-volume × price-fit model applied to our editorial and benchmark analysis across the home ai / computer lab category. Compare with similarly-priced alternatives in the home ai / computer lab category before committing. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for home ai / computer lab of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

【Powerful Performance 】: Powered by the Intel Core i9-14900K (24 Cores, up to 6.0GHz), delivering exceptional speed and multitasking capabilities for demanding workloads.
【Ample Storage & Memory】Users can customize their setup with up to 128GB DDR5 RAM, ensuring seamless performance across multiple applications. Storage options include up to 2TB PCIe M.2 Solid State Drive for ultra-fast access speeds, or up to 2TB 3.5 inch HDD, offering ample space for extensive file archives and large applications.
【Comprehensive Connectivity】Equipped with Type-C, Wi-Fi, Bluetooth, RJ45, HDMI, and 2 DisplayPorts for seamless connectivity with a wide range of devices and peripherals.
Windows 11 PRO: This Windows 11 Pro laptop is engineered for business, education, and professional use, featuring enhanced security and productivity tools. Perfect for college students, remote learning, and video conferencing, this Lenovo work laptop delivers efficient performance for Zoom meetings, online classes, and multitasking.
【Efficient & Compact Design】Tower form factor offers enhanced expandability while maintaining a sleek, space-saving design ideal for office or home setups.

Full Specifications

Brand	HP
RAM Type	DDR5 RAM
CPU Model	Core i9
CPU Speed	3.2 GHz
Model Name	SFF G9
Resolution	3840 x 2160
Unit Count	1 Count
Aspect Ratio	16:9
Connectivity	Bluetooth, WiFi
Display Type	LED/LCD
Memory Speed	3200 MHz
Model Number	400
Video Output	HDMI, DisplayPort
Built-In Media	Keyboard, Mouse
Connection Type	Wired
Keyboard Layout	QWERTY
Processor Brand	Intel
Processor Count	24
Processor Speed	3.2 GHz
Total Usb Ports	11
Full listing title	HP ProDesk 400 G9 SFF Desktop Computer, Intel Core i9-14900K (Up to 6.0GHz), 32GB DDR5 RAM, 2TB PCIe SSD, Wi-Fi, HDMI, DP, 2-Monitor Support 4K, Wired Keyboard & Mouse, RJ45, Windows 11 Pro

Performance Data

View gaming FPS, AI inference throughput, and synthetic scores for the Intel Core i9-14900K — the core hardware component in this product. Benchmarks sourced from TechPowerUp, PassMark, and the r/LocalLLaMA community.

Ready to buy?

Amazon shows no buyable offer for HP ProDesk 400 G9 SFF Desktop Computer at the last check. A similar in-stock product is HP ProDesk 400 G9 SFF Business Desktop. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

View Similar — $848.98