Audio
Audio chip	Realtek ALC3252
Brand-specific features
HP Security tools	Trusted Platform Module TPM 2.0 Embedded Security Chip shipped with Windows 10 (Common Criteria EAL4+ Certified)(FIPS 140-2 Level 2 Certified); HP Secure Erase; HP Sure Click; HP Sure Sense; Absolute Persistence module; HP Sure Admin; HP BIOSphere Gen6; HP Tamper Lock; HP Sure Start Gen7; HP Platform Certificate On Device Installation
HP Management tools	HP Client Catalog (download); HP Driver Packs (download); HP Image Assistant (download); HP Client Management Script Library (download); HP Connect for Microsoft Endpoint Manager; HP Manageability Integration Kit (download); HP Patch Assistant (download)
HP Software provided	HP Notifications; HP PC Hardware Diagnostics UEFI; HP Connection Optimizer; HP Privacy Settings; HP PC Hardware Diagnostics Windows; HP Desktop Support Utilities; MyHP; HP QuickDrop; HP Easy Clean; HP Easy Clean Keyboard Drive
HP GTIN (EAN/UPC)	199642200166
HP segment	Business
HP Support Assistant
Carbon footprint
Total carbon footprint (kg of CO2e)	163.399
Carbon emissions, manufacturing (kg of CO2e)	139.791
Carbon emissions, logistics (kg of CO2e)	1.271
Carbon emissions, end-of-life (kg of CO2e)	0.964
Total carbon emissions, w/o use phase (kg of CO2e)	21.373
Design
Chassis type	Mini PC
Colour name	Jack black
Number of 2.5" bays	1
Product colour	Black
Introduction year	2025
Display
Display included
Graphics
Discrete graphics card model	Not available
On-board GPU manufacturer	Intel
On-board graphics card family	Intel® UHD Graphics
On-board graphics card model	Intel UHD Graphics 770
Discrete graphics card
On-board graphics card
Keyboard
Keyboard connectivity	Wired
Memory
Internal memory	16 GB
Maximum internal memory	16 GB
Internal memory type	DDR5-SDRAM
Memory layout (slots x size)	1 x 16 GB
Memory slots	2x DIMM
Memory clock speed	4800 MHz
Memory module type	SODIMM
Memory data transfer rate	4800 MT/s
Network
Ethernet LAN data rates	10,100,1000 Mbit/s
Top Wi-Fi standard	Wi-Fi 6E (802.11ax)
Wi-Fi standards	Wi-Fi 6E (802.11ax)
WLAN controller manufacturer	Intel
WLAN controller model	Intel Wi-Fi 6E AX211
Antenna type	2x2
Bluetooth version	5.3
Ethernet LAN
Wi-Fi
Bluetooth
Operational conditions
Operating temperature (T-T)	10 - 35 °C
Operating relative humidity (H-H)	10 - 90%
Other features
UNSPSC-code	43211507
Packaging content
Mouse connectivity	Wired
Input device model	HP 125 Wired Mouse
Mouse included
Keyboard included
Numeric keypad
Packaging data
Package width	498 mm
Package depth	235 mm
Package height	132 mm
Package weight	3.4 kg
Performance
Market positioning	Proven productivity
Motherboard chipset	Intel Q670
Password protection type	BIOS, Power on
Product type	Mini PC
Trusted Platform Module (TPM) version	2.0
Password protection
Trusted Platform Module (TPM)
Ports & interfaces
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	2
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity	3
USB 3.2 Gen 2x2 Type-C ports quantity	1
DisplayPorts quantity	2
DisplayPort version	1.4
HDMI ports quantity	1
HDMI version	2.1
Ethernet LAN (RJ-45) ports	1
Combo headphone/mic port
Microphone in
Power
Power supply	90 W
Power supply input voltage	100 - 240 V
Power supply input frequency	50/60 Hz
Processor
Processor manufacturer	Intel
Processor family	Intel® Core™ i7
Processor generation	Intel® Core™ i7 (14th gen)
Processor model	i7-14700T
Processor cores	20
Processor threads	28
Processor boost frequency	5 GHz
Performance cores	8
Efficient cores	12
Performance-core Max Turbo Frequency	5 GHz
Efficient-core Max Turbo Frequency	3.7 GHz
Performance-core base frequency	1.3 GHz
Efficient-core base frequency	0.9 GHz
Processor cache	33 MB
Processor cache type	L3
Processor base power	35 W
Maximum turbo power	106 W
Processor special features
Intel® Turbo Boost Technology
Software
Operating system installed	Windows 11 Pro
Storage
Total storage capacity	512 GB
Storage media	SSD
Number of storage drives installed	1
Total SSDs capacity	512 GB
Number of SSDs installed	1
SSD capacity	512 GB
SSD interface	PCI Express
SSD form factor	M.2
Optical drive type
NVMe
Supplier features
Manufacturer warranty	1 year (1/1/1) limited warranty includes 1 year of parts, labor and on-site repair. Terms and conditions vary by country. Certain restrictions and exclusions apply.
Sustainability
Sustainability certificates	ENERGY STAR, EPEAT, TCO
Sustainability compliance
Technical details
General Product Safety Regulation (GPSR) URL	https://support.hp.com/us-en/document/ish_6126692-6126777-16?openCLC=true
Weight & dimensions
Width	177 mm
Depth	175 mm
Height	177 mm
Weight	1.42 kg

The HP Pro Mini 400 G9 is a compact Mini-PC for commercial use, distinguished by professional performance, integrated security features, and flexible connectivity options. It is specifically designed for small workstations, offices, and businesses that require a powerful yet space-saving desktop computer. The device features an Intel® Core™ i7-14700T processor, offering 20 cores (8 performance cores and 12 efficient cores) and 28 threads. The maximum turbo frequency reaches 5 GHz for performance cores and 3.7 GHz for efficient cores, enabling the PC to efficiently handle demanding tasks such as multitasking, data processing, or virtual work environments. The base frequency is 1.3 GHz (performance cores) and 0.9 GHz (efficient cores), and the processor includes a L3-Cache of 33 MB. Thermal design power is 35 W in base operation and can reach up to 106 W under turbo load.

Applications include office applications, call centres, sales stations, cash register systems, and use in spaces with limited room where a full-featured desktop PC is required but a large tower computer is not feasible. The compact form factor allows flexible placement under a desk, on a wall, or on a shelf. The PC is designed for businesses that value reliability, security, and maintainability.

Features and specifications in detail include 16 GB DDR5-SDRAM system memory with a clock speed of 4800 MHz, installed as a single 16-GB module. Two DIMM slots are available, allowing for a maximum memory capacity of 64 GB. The memory data transfer rate is 4800 MT/s. As SSD, a 512-GB drive in M.2 form factor with PCI Express interface and NVMe support is integrated, ensuring fast boot times and data access. An optical drive is not included.

Graphics are handled by the integrated Intel UHD Graphics 770 solution, sufficient for office applications, web browsing, and multimedia.

Technology explained simply shows that the processor uses Intel Turbo Boost technology, meaning the clock speed is dynamically increased based on workload to enable performance peaks. Power supply is 90 W, operating with an input voltage of 100–240 V at 50/60 Hz. The device is equipped with a Trusted Platform Module (TPM) 2.0, ensuring encrypted data and secure authentication. Password protection is active in BIOS and at power-on.

Compatibility and accessories include support for Windows 11 Pro as the installed operating system. Network functions include Wi-Fi 6E (802.11ax) with an Intel Wi-Fi 6E AX211 controller and 2x2 antenna type, as well as Bluetooth 5.3. Ethernet connection offers data rates of 10/100/1000 Mbit/s. Connectors include two USB 3.2 Gen 1 (3.1 Gen 1) Type-A, three USB 3.2 Gen 2 (3.1 Gen 2) Type-A, one USB 3.2 Gen 2x2 Type-C, two DisplayPort 1.4, one HDMI 2.1, one RJ-45 Ethernet port, and a combined headphone/microphone jack. Flex connectors allow individual configuration with options such as HDMI, DisplayPort, VGA, serial ports, Dual USB 2.0, or a second external antenna.

Mounting and installation are tool-free, as the device is designed as a Mini-PC. Installation is performed via standard system installation under Windows 11 Pro. The devices are tested for use in commercial environments and comply with MIL-STD 810 and the HP Total Test Process, highlighting durability and reliability. The housing is in Black (Jack black).

Operational advantages include low noise emission due to the HP Run Quiet design, ensuring whisper-quiet operation. The high energy efficiency of the power supply and the use of molded cellulose in packaging underscore sustainability efforts. Integrated HP Wolf Security for Business provides hardware-based, continuously active defense against modern threats. The combination of compact design, high performance, and security features makes the HP Pro Mini 400 G9 a suitable solution for businesses requiring a reliable, space-saving workstation computer.

Brand characteristics include HP Support Assistant and HP Security tools, supporting system maintenance and security. The device is designed for use in a constantly evolving business environment to reduce total cost of ownership and optimize technology investments.

The HP Pro Mini 400 G9 is a Mini-PC with Intel® Core™ i7-14700T, DDR5-SDRAM, SSD, Wi-Fi 6E, Bluetooth 5.3, and Windows 11 Pro, developed for professional applications in commercial environments. The combination of performance, security, and flexibility makes it a suitable solution for businesses requiring a compact, yet powerful desktop computer.