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HP

HP ProDesk 400 G9 SFF Business Desktop Computer, Intel CPU, 32GB RAM, 1TB PCle SSD, Dual 4K Display Support, USB-C, HDMl, RJ-45, Wi-Fi, Wired Keyboard & Mouse, Windows 11 Pro

  • Based on 9 reviews
Condition: New
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Availability: In Stock.
Fulfilled by ProTech PC

Arrives Jul 14 – Jul 16
Order within 12 hours and 57 minutes
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Size: 32GB RAM | 1TB SSD


Style: Intel CPU


Features

  • FAST BUSINESS PERFORMANCE: Powered by the Intel Celeron G6900 (Dual-Core, 4MB Cache, 3.4 GHz), engineered for smooth multitasking and daily computing, with Intel UHD Graphics delivering crisp visuals for work or entertainment.
  • HIGH-SPEED RAM & AMPLE STORAGE: Configurable up to 64GB DDR4 RAM for effortless multitasking and blazing-fast response times, paired with up to 2TB PCIe M.2 SSD for ultra-fast boot-up and efficient data handling.
  • COMPREHENSIVE CONNECTIVITY: 1 x USB Type-C, 3 x USB Type-A, 1 x headphone/microphone combo, 1 x audio-out, 1 x power connector, 1 x RJ-45, 1 x HDMI 1.4, 3 x USB Type-A, 1 x DisplayPort 1.4, 2 x USB 2.0 Type-A, Wired Keyboard & Mouse, Wi-Fi.
  • COMPACT, DURABLE, AND TRUSTED HP QUALITY: Weighing under 9 pounds and measuring just 11.9 x 10.6 x 3.7 inches, the HP ProDesk 400 G9 Small Form Factor (SFF) Desktop combines a sleek, space-saving design with HPs legacy of reliability and innovation. Crafted with premium materials, its engineered to withstand daily use while delivering enterprise-grade performance, making it a dependable choice for both business and personal needs.
  • HP SECURE & VERSATILE: Enjoy the latest Windows 11 Pro, pre-configured for organised multitasking, intuitive navigation, packed with security features TPM 2.0 and HP Wolf Security for complete protection.

Description

The HP ProDesk 400 G9 SFF is designed to meet the needs of modern businesses, offering a perfect balance of performance and compact design. Powered by the Intel Celeron G6900, this desktop delivers smooth performance for multitasking, data analysis, and more. Up to 64GB DDR4 RAM ensures seamless operation, and up to 2TB SSD provides lightning-fast boot times and quick access to all your files, making your workflow more efficient. With its space- saving design, this small form factor desktop fits effortlessly into tight office spaces. Featuring Windows 11 Pro, advanced connectivity (USB-C, HDMI, and DisplayPort), and enterprise-level security with HP Wolf Security, the HP ProDesk 400 G9 SFF is the ideal solution for businesses that need power, reliability, and security all in one.

Brand: HP


Operating System: Windows 11 Pro


CPU Model: Celeron


CPU Speed: 3.4 GHz


Cache Size: 4 MB


Graphics Card Description: Integrated


Graphics Coprocessor: Intel UHD Graphics


Memory Storage Capacity: 64 GB


Specific Uses For Product: Business


Personal computer design type: Computer Tower


Operating System: Windows 11 Pro


Specific Uses For Product: Business


Personal Computer Design Type: Computer Tower


Color: Black


Hard Disk Description: SSD


Hardware Interface: USB Type C


Video Output Interface: HDMI


Hard Disk Interface: PCIE x 4


Style Name: Intel CPU


Cooling Method: Air


Compatible Devices: Keyboard, Mouse, Monitor, Printer, External Storage Drive, Smartphone, Projector


Power Plug Type: Type A - 2 pin (North American), Type B - 3 pin (North American)


Security Features: TPM 2.0, HP Wolf Security


Video Output: HDMI, DisplayPort


Cache Memory Installed Size: 4 MB


Memory Storage Capacity: 64 GB


RAM Memory Installed: 32 GB


RAM Memory Technology: DDR4


Ram Memory Maximum Size: 64 GB


RAM Type: DDR4 SDRAM


Memory Slots Available: 2


Processor Series: Celeron


Processor Speed: 3.4 GHz


Processor Socket: LGA


Processor Count: 2


Total Usb Ports: 9


Total Number of HDMI Ports: 1


Number of Component Outputs: 2


Human-Interface Input: Keyboard


Keyboard Description: Wired Keyboard


Keyboard Layout: QWERTY


Brand: HP


Model Number: 400 G9


Model Name: Prodesk


Built-In Media: Keyboard


Processor Brand: Intel


Model Year: 2022


CPU Model Number: G6900


Warranty Description: 90 Days


Video Processor: Intel


UPC: 194850294358


Unit Count: 1.0 Count


Manufacturer: hp


Graphics Description: Integrated


Graphics Coprocessor: Intel UHD Graphics


Graphics Card Ram: 32 GB


Graphics Ram Type: Shared


Graphics Card Interface: Integrated


Display Resolution Maximum: 3840x2160


Display Type: LED


Aspect Ratio: 169


Resolution: 3840 x 2160


Native Resolution: 3840 x 2160


Connectivity Technology: USB


Wireless Compability: 802.11ac, 802.11ax


Wireless Technology: Wi-Fi


Wireless Network Technology: Wi-Fi


Speaker Type: External Speakers Required


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Jul 14 – Jul 16

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Running perfectly, setup was easy
This small desktop from HP was a snap to set up and start using. I had zero errors and all my data and apps transferred over successfully. The PC is quiet and the speed is much better than my older Dell desktop. I like the size and how it's not built as a tower setup. So far, so good. I also purchased the 3 year Amazon/Asurion protection plan. I hope I don't need it over the next 3 years. Fingers crossed. ... show more
Reviewed in the United States on July 13, 2025 by MatthewJ

  • New desktop
Excellent replacement, easy setup,
Reviewed in the United States on April 15, 2026 by John L Smith

  • Great Buy and excellent performance
Set up was easy. Be sure to have working internet. Very fast.... Boot up is quick! Love the small size , only 10.5" across the front.
Reviewed in the United States on July 21, 2025 by Harry

  • Hp is good
See,s to work just fine. Just don’t know if it came with Microsoft Office. Think so , but….
Reviewed in the United States on December 17, 2025 by Mike P

  • Packs a lot of features, speed and storage into a small space.
HAPPY START - I am very pleased so far. After too many conversations with Apple Support, I relegated my Mac-Mini to spare status and decided to go back to WINDOWS. Setup was easy with guidance throughout and I am enjoying many features I did not have with APPLE. On the down side, I miss some of the software available to APPLE that I cant find on either Windows or GOOGLE. I especially enjoyed doing photo books for my family but while those programs are available on ANDROID and my phone, I can no longer get them on my new WINDOWS computer. Neither am I especially happy with the keyboard that came with the unit. My old Underwood typewriter was easier to use. I am happy with storage and speed and space advantages. I think I am going to like it. ... show more
Reviewed in the United States on April 23, 2025 by Amazon Customer

  • Worth nothing. Do not buy
Horrible product from day one. Keep breaking and causing so much stress. The helpdesk not helping in any way. Probably will never touch any HP products
Reviewed in the United States on June 10, 2026 by Payam

  • Great computer!
Great product for the price!
Reviewed in the United States on May 22, 2026 by David P. Coleman

  • Fast service
Great sale
Reviewed in the United States on June 14, 2026 by Jory Blumer

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