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HP Pro Small Form Factor 400 G9 Desktop PC

HP Pro Small Form Factor 400 G9 Desktop PC

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ENERGY STAR | Business

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Product # AJ5B6UA#ABA
  • Windows 11 Pro
  • Intel® Core™ i5-14500 (up to 5.0 GHz with Intel® Turbo Boost Technology, 24 MB L3 cache, 14 cores, 20 threads)
  • 16 GB memory; 256 GB SSD storage
  • Intel® UHD Graphics 770See all Specs
3% back in HP Rewards
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Included

    • Remote problem diagnosis and support
    • Onsite support wherever work happens
    • Faster tech support
    • Predictive AI-powered insights and proactive onsite support
    • End user alerts and automated IT ticketing
    • Remote problem diagnosis and support
    • Onsite repair or replacement, anywhere work happens

    Service starts on date of hardware purchase. Restrictions and limitations apply.

    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.

    HP Pro SFF 400 G9 Desktop PC

    A women is working on her HP latop in the office
    AMD icon
    Windows 11
    HP Pro Mini

    Keep up with the varied needs of your business. The small and capable HP Pro SFF 400 features strong security and performance. Scalable architecture and connectivity options make the most of your investment-now and in the future.

    AMD icon
    Windows 11
    HP Pro Mini

    Simple PC management Always-on security

    Icon

    Expansion that extends your investment

    The full value of your investment comes with expansion that extends the life of your PC. The HP Pro SFF 400 has an M.2 slot for WLAN and one for storage, one PCIe x16, and one PCIe x1 slot-including configurable ports to fit your peripheral needs.

    Icon

    Boost your
    productivity

    Increase productivity with video ports supporting up to three displays1, while featuring the performance to tackle a range of workflows with the latest optional discrete NVIDIA® T400 & AMD RadeonTM RX6300 graphic cards.2

    Wolf security icon

    Protected by
    HP Wolf Security

    HP Wolf Security for Business3 creates a hardware-enforced, always-on, resilient defense. From the BIOS to the browser, above, in, and below the OS, these constantly evolving solutions help protect your PC from modern threats.

    Designed for

    Icon

    Frontline
    Pro

    Icon

    Office
    Independents

    Icon

    Office
    Collaborators

    HP Pro SFF 400 G9 Desktop PC

    Ports

    Hp pro mini front view
    1. Slim optical drive (optional)

    2. Type-C® SuperSpeed USB 10Gbps signaling rate port (charge support up to 5V/3A)

    3. Type-A SuperSpeed USB 10Gbps signaling rate port (charge support up to 5V/0.9A)

    4. Type-A SuperSpeed USB 10Gbps signaling rate port (charge support up to 5V/0.9A)

    5. SD card 4.0 reader (optional)

    6. Combo Audio Jack with CTIA and OMTP and headset support

    7. Dual-state power button

    8. Hard drive activity light

    Displaying ports of a Desktop PC
    1. External antenna (optional)

    2. Audio line-in/line-out connector

    3. Dual-Mode DisplayPort™ 1.4a (DP++)

    4. External antenna (option 1)

    5. HDMI 1.4b

    6. Flex Port, choice of:

      • DisplayPort™ 1.4a

      • VGA

      • HDMI 2.1

      • Serial

      • Dual Type-A SuperSpeed USB 5Gbps signaling rate

      • Type-C® SuperSpeed USB 10Gbps signaling rate with DisplayPort™ Alt mode

    1. External antenna (optional)

    2. Audio line-in/line-out connector

    3. Dual-Mode DisplayPort™ 1.4a (DP++)

    4. External antenna (option 1)

    5. HDMI 1.4b

    6. Flex Port, choice of:

      • DisplayPort™ 1.4a

      • VGA

      • HDMI 2.1

      • Serial

      • Dual Type-A SuperSpeed USB 5Gbps signaling rate

      • Type-C® SuperSpeed USB 10Gbps signaling rate with DisplayPort™ Alt mode

    7. RJ45 network connector

    8. Type-A Hi-Speed USB 480Mbps signaling rate port (Supporting wake from S4/S5 with keyboard/mouse connected and enabled in BIOS)

    9. Type-A SuperSpeed USB 5Gbps signaling rate port

    10. Internal WLAN antenna cover (optional)

    11. Standard cable lock slot

    12. Serial Port (Optional)

    13. Padlock loop

    14. Integrated accessory cable lock

    15. Power cord connector

    Help protect our shared future

    HP Pro Mini
    world icon

    Support a commitment to create and use more sustainable products on the EPEAT® registered4 HP Pro SFF 400. The high efficiency power supply, use of ocean-bound plastics in the speaker box5 and molded pulp packaging6 help reduce the impact on the environment.

    Epeat registered icon

    EPEAT®
    registered

    Energy star icon

    ENERGY STAR®
    certified

    1. Two standard video ports included with an optional third flex port configurable at the time of purchase.
    2. Optional feature that must be configured at the time of purchase.
    3. HP Wolf Security for Business requires Windows 10 Pro and higher, includes various HP security features and is available on HP Pro, Elite, Workstation, and RPOS products. See product details for included security features and OS requirements.
    4. Based on US EPEAT® registration according to IEEE 1680.1-2018 EPEAT®. EPEAT® status varies by country. Visit www.epeat.net for more information.
    5. Recycled plastic content percentage is based on the definition set in the IEEE 1680.1-2018 standard.
    6. 100% outer box packaging made from sustainably sourced certified and recycled fibers. Fiber cushions made from 100% recycled wood fiber and organic material. Any plastic cushions are made from >90% recycled plastic.

    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]

    Integrated graphics’ options 

    Boost your desktop’s performance with integrated graphics. Enable fast execution for your computing and multimedia graphics workloads. 

    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]
    HP Pro Small Form Factor 400 G9 Desktop PC is rated 4.2 out of 5 by 29.
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    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
    Rated 1 out of 5 by HP knowledgeable User from Stay away from HP Website description for their hardware is vague enough to mislead you into buying the wrong equipment. Their customer service stinks. You have to wait for hours, then you get bounced around from one person to the next, and none of them are able to resolve your issue. Then you try to return the equipment that did not work for you, and they decide to keep 15% restocking fee, for deficient equipment that you never could use.
    Date published: 2024-05-30
    Rated 4 out of 5 by Miss TJ from New office computer after 20 years. Took a bit of time getting used to new buttons, etc. with W11. Graphics and speed are great. The DVD is not the same quality as my old computer, but I will be careful. Had to purchase a spliter for two displays, as only one hdmi connection. Very quiet and compact.
    Date published: 2024-05-22
    Rated 5 out of 5 by Atrium from office computer good for business. has all the high-level security you need and perfect for the office.
    Date published: 2024-02-10
    Rated 5 out of 5 by Anonymous from Great price, great system. System is compact and lightweight and includes a sufficient amount of ports. Ordering and delivery status monitoring is great!
    Date published: 2023-05-10
    Rated 5 out of 5 by Milco wire edm from owner great speedy service on the sale
    Date published: 2023-01-23
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    Is the RS232/Serial Com port native or USB based?

    Asked by: Francesco1
    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.
    Answered by: HP Team Grant
    Date published: 2024-11-22

    Can a Creative Sound Blaster be added to this? How many PCIe slots are available?

    Asked by: SPurk
    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.
    Answered by: HP Team Grant
    Date published: 2024-12-16

    Does this computer support multiple monitors via a docking station such as the HP Thunderbolt Dock 120W G4?

    Asked by: NikkiJN
    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.
    Answered by: HP Team Grant
    Date published: 2025-03-27

    I see it states that up to 3 monitors, but I noticed on note below that states "optional" Can you clarify? (Copied: [3] Two standard video ports included with an optional third flex port configurable at the time of purchase.)

    Asked by: Eric_S
    This HP Pro Small Form Factor 400 G9 Desktop PC shows as having one HDMI and two DisplayPorts on the rear of the PC. This has the optional 3rd flex port installed. Thank you for your question!
    Answered by: HP Team Grant
    Date published: 2024-05-28

    I want the "HP Pro Small Form Factor 400 G9 Desktop PC" but the hard drive is way too small can I modify this product and which specific hard drive you replace it with I.E. product name and read and write speeds? Would the PSU have to be changed?

    Asked by: Taylor714
    Yes, this HP Pro Small Form Factor 400 G9 Desktop PC has an expansion slot for an M.2 2280 slot for an SSD. No PSU upgrade will be needed for a second hard drive.
    Answered by: HP Team Grant
    Date published: 2023-06-21

    PRodesk 400 SFF G9, Support PCIe NMVe QLC SSD?

    Asked by: JOE LOO
    This HP Pro Small Form Factor 400 G9 supports the following SSD options: 256 GB PCIe 4x4 2280 NVMe TLC SSD 256 GB PCIe 4x4 2280 NVMe OPAL 2 Self-Encrypted (SED) TLC SSD 512 GB PCIe 4x4 2280 NVMe OPAL 2 Self-Encrypted (SED) TLC SSD 512 GB PCIe 4x4 2280 NVMe TLC SSD 1 TB PCIe 4x4 2280 NVMe TLC SSD 2 TB PCIe 4x4 2280 NVMe TLC SSD
    Answered by: HP Team Grant
    Date published: 2023-05-27

    does this device have wi-fi and Bluetooth adapters?

    Asked by: MikeAlliance
    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.
    Answered by: HP Team Cheri
    Date published: 2025-04-15

      Can I get it with 16 GB of ram and with windows 10

    Asked by: MattBatt
    This HP Pro Small Form Factor 400 G9 Desktop PC ships as specified. For a customizable HP Z2 Small Form Factor 400 G9, please visit this link: https://www.hp.com/us-en/workstations/z2-small-form-factor-configure.html?jumpid=va_d08cf5d452
    Answered by: HP Team Grant
    Date published: 2024-02-20
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    Return and exchange information
    HP.com will accept returns or exchanges for this product up to 30 days after delivery. A restocking fee may apply. For details, please visit: https://www.hp.com/us-en/shop/cv/returnsandexchanges.