HP Pro Small Form Factor 400 G9 Desktop PC
ENERGY STAR | Business
Other offers available with the product:
FREE Storewide Shipping
Creative tools for just $129.99!
Maximize the dollars that you spend with HP
Financing options available for all credit scores
Clear the Warehouse Sale
Product # AJ5B5UA#ABA
- Windows 11 Pro
- Intel® Core™ i7-14700 (up to 5.4 GHz with Intel® Turbo Boost Technology, 33 MB L3 cache, 20 cores, 28 threads)
- 16 GB memory; 512 GB SSD storage
- Intel® UHD GraphicsSee all Specs
Can't find what you are looking for?
3% back in HP Rewards
HP Pro Small Form Factor 400 G9 Desktop PC
$0.00
The HP Pro SFF 400 Desktop provides users in hybrid work environments with the commercial-grade configuration options and connectivity in a space-saving design. This PC is powered by the latest Intel® processor[2] and protected with always-on security you can trust.
Expansion bays and slots
The HP Pro SFF 400 has an m.2 slot for WLAN and one for storage, one PCIe x16 slot, and one PCIe x1 slot.
Connect up to 3 displays
Increase productivity and tackle a range of workflows with video ports supporting up to three displays.[3]
Protected by HP Wolf Security
HP Wolf Security for Business creates a hardware-enforced, always-on, resilient defense.[6]
Help protect our shared future
A high-efficiency power supply and molded-pulp packaging9 help reduce the impact on the environment.[9]
Copilot in Windows 11 - Get answers, inspiration, and summaries.
Find the relevant information and ideas you need to power your own ingenuity. Copilot in Windows 11 can deliver answers that are more relevant to you.
Recommended Accessories
Features
Windows 11
Work anywhere without compromising on performance or security with Windows 11 powered by HP's collaboration and connectivity technology.
Latest Intel® multi-core processor
Configure your HP Pro SFF 400’s CPU for the perfect combination of power, snappy performance, and value. With the latest Intel® processor and DDR5 memory, handle multiple work tasks smoothly and reliably.
Security is your top priority
The HP Wolf Pro Security Edition provides preconfigured enterprise-level PC protection for small and medium sized businesses.[1]
BIOS management over the network
HP Sure Admin, a modern BIOS management tool, eliminates the need for a password or BIOS configuration utility in the OS by creating a digital signature that allows IT administrators to securely manage BIOS settings over a network.[4]
Browse confidently
Help protect your PC from websites and read only Microsoft Office and PDF attachments with embedded malware, ransomware, or viruses with hardware-enforced security from HP Sure Click.[5]
Automatic recovery from firmware attacks
Firmware attacks can completely devastate your PC. Stay protected with HP’s self-healing BIOS - HP Sure Start Gen7 automatically recovers the BIOS from malware, rootkits, or corruption.
HP Sure Sense
Malware is evolving rapidly beyond traditional antivirus capabilities. Protect your PC against never-before-seen attacks with HP Sure Sense, which combines behavioral analysis with advanced AI techniques to provide exceptional protection.
Erase your drive
HP Secure Erase removes the contents of a hard drive for repurposing or reassignment.[7]
Simple PC management
Spend less time and get right to the updates you need with HP Support Assistant.[8]
Speed up the basics of IT management
Deploy the HP Manageability Integration Kit to help speed up image creation and the management of hardware, BIOS, and security when managing devices through Microsoft Endpoint Manager.[10]
Technical Specs
Reviews and Q&A
HP Pro Small Form Factor 400 G9 Desktop PC is rated
out of
5 by
2.
Rated 1 out of
5
by
Anonymous from
Do not buy
Dissatisfied
Date published: 2025-10-14
Rated 4 out of
5
by
Reviewer J from
HP Pro SFF 400 G9 Desktop PC Review
The best thing I like about this PC is the improvement in the speed of the performance of the whole range of actions requested, so far. Given that this is a compact PC, it would nevertheless be a lot easier to work with it if the spacing of the USB drive openings were a little further apart and especially if the labels or wording on the PC were larger and more easily readable.
Date published: 2024-11-15
Does this computer support multiple monitors via a docking station such as the HP Thunderbolt Dock 120W G4?
Thank you for your question! No, this HP Pro Small Form Factor 400 G9 Desktop PC will not support external docks. This HP Pro Small Form Factor 400 G9 Desktop PC has 2 DisplayPorts for external displays and an HDMI port for a total of 3 support displays.
Date published: 2025-03-27
Does this product have an open Hard Drive Bay?
Thank you for your question! No, the HP Pro Small Form Factor 400 G9 Desktop PC has no expansion for an HDD or SSD.
Date published: 2025-10-05
Am I correct that some 400 G9 series of Desktop PCs have WiFi and/or Bluetooth cards that the user can remove?
Thank you for your question! The HP Pro Small Form Factor 400 G9 Desktop PC has an M.2 2230 expansion slot for WLAN.
Date published: 2025-01-06
Is the RS232/Serial Com port native or USB based?
Thank you for your question! This HP Pro Small Form Factor 400 G9 Desktop PC has the following ports: Front : 1 headphone/microphone combo; 1 SuperSpeed USB Type-C® 10Gbps signaling rate; 3 SuperSpeed USB Type-A 10Gbps signaling rate
Rear : 1 audio-out; 1 power connector; 1 RJ-45; 1 HDMI 1.4; 3 SuperSpeed USB Type-A 5Gbps signaling rate; 1 DisplayPort™ 1.4; 2 USB Type-A 480Mbps signaling rate
1 DisplayPort™
An RS232 port is not mentioned as a port on this PC.
Date published: 2024-11-22
Can a Creative Sound Blaster be added to this? How many PCIe slots are available?
Thank you for your question! The HP Pro Small Form Factor 400 G9 Desktop PC is a Small Form Factor PC and will not be compatible with standard-size cards. This HP Pro Small Form Factor 400 G9 Desktop PC has 1 PCIe 3 x1 and 1 PCIe 4 x16 expansion slots.
Date published: 2024-12-16
does this device have wi-fi and Bluetooth adapters?
Hello. Thanks for your question. The HP Pro Small Form Factor 400 G9 Desktop (AJ5B4UA) does not include built-in Wi-Fi or Bluetooth. However, it features an M.2 (2230) slot for WLAN, allowing you to install a compatible Wi-Fi/Bluetooth card if needed. Alternatively, you can use a USB Wi-Fi and/or Bluetooth adapter for wireless connectivity.
Date published: 2025-08-04
The picture indicates a RS232 port. Does this computer actually come with a RS232 port?
Thank you for your question! No, this HP Pro Small Form Factor 400 G9 Desktop PC has the following ports:
Front : 1 headphone/microphone combo; 1 SuperSpeed USB Type-C® 10Gbps signaling rate; 3 SuperSpeed USB Type-A 10Gbps signaling rate
Rear : 1 audio-out; 1 power connector; 1 RJ-45; 1 HDMI 1.4; 3 SuperSpeed USB Type-A 5Gbps signaling rate; 1 DisplayPort™ 1.4; 2 USB Type-A 480Mbps signaling rate
1 DisplayPort
Date published: 2025-02-06
Hi, would this desktop have the ability to have a GPU card added along with 25TB of external storage attached in some high speed accessible fashion. -thanks
Similar Products
HP Pro Small Form Factor 400 G9 Desktop PC
Windows 11 ProIntel® Core™ i5-14500 (up to 5.0 GHz with Intel® Turbo Boost Technology, 24 MB L3 cache, 14 cores, 20 threads)16 GB memory; 512 GB SSD storageIntel® UHD Graphics 770
AJ5B4UA#ABA
ENERGY STAR | Business
3% back in HP Rewards
Return and exchange information
Most items may be returned within 30 days of delivery. A restocking fee of up to 15% of the purchase price may be deducted from your refund for returned items, except where prohibited by law. No restocking fee applies to defective or incorrect items. A restocking fee is not applicable for printers, ink, toner, paper, care packs, software and services. For details, please visit: https://www.hp.com/us-en/shop/cv/returnsandexchanges.
