Please allow ~2-3 weeks to dispatch for quality control. Product images are for illustrative purposes only and may contain AI-generated content; they may not represent the final product you receive. Products are subject to the cosmetic grading policy detailed here.
If you are ordering a device that does not include a Windows 11 licence as standard, please check Microsoft's minimum system requirements to confirm if it can be upgraded later should you wish to do so.
The HP Pro Mini 400 G9 PC Ultra Small Form Factor features an Intel 13th Gen Core i7-13700T processor (up to 4.9 GHz, 16 cores, 24 threads, 30 MB L3 cache), 16 GB DDR4-3200 SODIMM RAM (expandable to 64 GB), and 512 GB PCIe NVMe M.2 SSD storage. It includes integrated Intel UHD Graphics 770, runs Windows 11 Pro, and has connectivity options such as Intel Wi-Fi 6E AX211 (2x2) and Bluetooth 5.3. The compact device measures 17.7 x 17.5 x 3.4 cm and weighs approximately 1.42 kg. The port selection includes multiple SuperSpeed USB Type-A and Type-C ports, dual DisplayPort 1.4, and HDMI 2.1, suitable for enterprise and business environments, but it does not include a webcam or discrete GPU.
Practical Use Cases
This mini PC is ideal for compact office setups, enterprise desktop use, SMBs, and situations where space-saving is essential without compromising on processing power and security. It's suitable for productivity tasks, business applications, multitasking, and workplace environments that require strong security and manageability features.
Top Features and Benefits
- Powerful Intel Core i7-13700T 13th Gen processor with 16 cores and 24 threads for multitasking and fast processing.
- 16 GB DDR4-3200 RAM supports smooth performance and can be upgraded up to 64 GB.
- Fast and spacious 512 GB PCIe NVMe SSD storage for quick data access and ample storage.
- Integrated Intel UHD Graphics 770 for everyday graphics needs.
- Latest Wi-Fi 6E and Bluetooth 5.3 for future-proof wireless connectivity.
- Comprehensive security features including TPM 2.0, HP Sure Click, HP BIOSphere Gen6, and HP Tamper Lock.
- Ultra small form factor design fits into tight spaces and modern office layouts.
- Ample ports including USB 3.2 Gen 2 Type-A and Type-C, multiple display outputs for versatile connectivity.
- Professional-grade audio support with Realtek ALC3252 codec.
- Energy-efficient 90 W external power adapter.
Specifications
- Processor: Intel Core i7-13700T (up to 4.9 GHz, 16 cores, 24 threads, 30 MB L3 cache)
- RAM: 16 GB DDR4-3200 SODIMM (up to 64 GB supported)
- Storage: 512 GB PCIe NVMe M.2 SSD
- Graphics: Integrated Intel UHD Graphics 770
- Operating System: Windows 11 Pro
- Wireless: Intel Wi-Fi 6E AX211 (2x2), Bluetooth 5.3
- Ports: Front – 1 headphone/microphone combo, 2 USB Type-A 10Gbps (one charging), 1 USB Type-C 20Gbps; Rear – power connector, RJ-45 Ethernet, USB Type-A (various speeds), 2 DisplayPort 1.4, 1 HDMI 2.1
- Dimensions: 17.7 x 17.5 x 3.4 cm
- Weight: Approximately 1.42 kg
- Expansion: 1 M.2 2230 slot (WLAN), 1 M.2 2280 slot (storage), 1 internal 2.5" drive bay
- Security: TPM 2.0, HP Sure Start Gen7, HP Tamper Lock, HP BIOSphere Gen6, Absolute Persistence module
- Power: 90 W external adapter with active PFC
- Colour: Black
Quality Assurance and Warranty
All units are certified refurbished by Reboot IT through a thorough testing process using cutting-edge software, ensuring every feature and function is tested and verified. Reboot IT has been an industry expert since 2001. The product comes with a 1-year limited warranty offered by Reboot IT, covering parts, labour, and on-site repairs.
Operating System Pros and Cons
Windows 11 Pro is a robust and secure OS with business-oriented features such as enhanced security, virtual desktops, improved window management, and support for modern hardware. However, some users may experience a learning curve transitioning from previous versions, and occasional compatibility issues with legacy software can occur.
Grade Difference (if applicable)
For refurbished devices, an Excellent grade typically means the device is in like-new condition with minimal signs of use and fully tested functionality, while a Good grade might show more noticeable signs of previous use but is still fully operational. This device is offered with certified refurbishment to ensure reliability.
Purchase the HP Pro Mini 400 G9 for a compact, high-performance enterprise PC solution with trusted security features and Reboot IT’s expert refurbishment and 1-year warranty — ideal for modern business environments where space and efficiency matter.
USB-C |
| Manufacturer Warranty | 1 Year |
| Features | None |
| Item Height | None |
| RAM Size | 16GB |
| Graphics Processing Type | Integrated/On-Board Graphics |
| Chipset | None |
| Item Width | None |
| Model | Pro Mini 400 G9 PC |
| Type | Desktop |
| Resolution | none |
| Processor | Intel 12th Gen Core i5-12500T |
| Release Date | 2023 |
| Processor Model | Core i5-12500T |
| Colour | None |
| Item Weight | None |
| Storage Type | NVMe SSD |
| Optical Drive | None |
| Operating System Edition | Windows 11 Pro |
| SSD Capacity | 512GB |
| Memory Type | DDR4 SODIMM |
| Cores | 10 |
| Other Software | None |
| Brand | HP |
| L2 Cache | None |
| Form Factor | Ultra Small Form Factor (USDT) |
| Part Number | None |
| Screen Size | None |
| Maximum Ram Capacity | None |
| Custom Bundle | No |
| Motherboard Model | None |
| Series | None |
| Operating System | Windows 11 Pro |
| RAM Type | DDR4 SODIMM |
| Most Suitable For | None |
| Connectivity | None |
| Max Turbo Speed | 4.40 GHz |
| MPN | None |
| Processor Speed | 2.0GHz |
| Release Year | 2023 |
| Hard Drive Capacity | 512GB |
| GPU | Intel UHD Graphics 4690 |
| Item Length | None |
Refurbished Computers - Cosmetic Grading Guide
Our supplier's refurbished hardware is typically graded either "Excellent" or "Good", however, some legacy products were graded under a letter grading system (A, B, C). Please find the definitions for each grade below and contact us if you're uncertain of a device's grade.
Used Smartphone / Refurbished Mobile Phones
"Excellent" Grade
Devices in this category appear like new, with very minor wear. Expect light or fine scratches on the screen that are shallow enough not to catch on a fingernail. The edge around the glass is virtually flawless, save for possible light scratching around the power port. The back plate may show light/fine scratches, including on the Apple logo, with any discoloration being minimal.
"Good" Grade
These devices are characterized by being fully tested and functional even if they have body scratches, minor paint chips, or a small hairline crack on the screen. Screens are free from dead pixels but may exhibit slight scratching from moderate use.
Refurbished Desktops, Laptops and Monitors
"Excellent" Grade - Laptops
Reserved for units that show barely any signs of previous use, these laptops may exhibit very minor scuffing or abrasions, associated only with minimal standard use. The keyboards show light wear, and importantly, the screens are pristine, free from any scratches, cracks, chips, dead pixels, dark spots, discoloration, or blemishes.
"Excellent" Grade - Desktops
Desktop PCs in the "Excellent" grade category are free from deep scratches, cracks, paint chips, or any broken/missing pieces, ensuring a sleek and almost-new aesthetic.
"Excellent" Grade - Monitors
"Excellent" grade is reserved for units that show evidence of very little to no previous use. Any wear on an "Excellent" Display, including housing/frame and/or external surfaces (i.e. Frame) is associated with standard minimal use. "Excellent" units may have minor scuffing and / or minor abrasions on plastics with from standard light previous use."Excellent" Displays will feature no scratches, cracks, chips, dead pixels, dark spots, discoloration or blemishes. Units will only feature the standard minimal wear and tear that is associated with a used unit.
"Good" Grade - Laptops
"Good" laptops may feature one or several small dings or dents on covers and / or small paint chips on the surface or small hairline cracks in the bezel. Laptop screens may feature uneven light diffusion in screen and may feature subtle blemishes. "Good" Laptops will not feature cracks screens but may feature slight scratching, dead pixels or white spots on the screen.
"Good" Grade - Desktops
"Good" grade desktops may have light scratches on external body and may feature more excessive unit housing and/or external case wear than "Excellent" units, including wear on case / lid. "Good" PCs may feature one or several small dings or dents on covers and / or small paint chips on the surface.
"Good" Grade - Monitors
Displays in the "Good" grade have been fully tested and are functional but may include scratches on body, small paint chips, minor cracks on body, loose and/or wobbly bases. "Good" Display screens may feature uneven light diffusion in screen and may feature subtle to moderate blemishes. "Good" Displays will not feature cracks on screens but may feature slight scratching on screen surfaces from moderate use or wear, dead pixels or white spots on the screen.
Legacy letter grading
Used Smartphone / Refurbished Mobile Phones
A Grade
- No chips, scratches or cracks on the front glass and housing
- No missing or alternative parts
- No sign of liquid damage
- Battery cannot be swollen
B Grade – Same as A Grade except:
- May have light scuffs but no chips or cracks
- Light scratches on housing or front glass
C-Grade – Same as B Grade except:
- Unlimited long shallow scratches on the front glass
- No chips or cracks on the front glass
- Unlimited scratches, chips/dents on back cover housing and corners
- Minor cracks allowed
- Customized housing and aftermarket covers allowed
Refurbished Desktops, Laptops and Monitors
A-Grade
- Overall excellent to very good cosmetic condition. Some may be pristine, others may have light scratches or minor blemishes
- Laptops may have some shiny areas around the keyboard such as the space bar, touchpad or touchpad buttons
- Keyboard keys will be in excellent condition
- Laptop and monitor screens will be blemish free
- Cosmetic blemishes will not impact the overall functionality or performance of the device
B-Grade
- Will have some cosmetic blemishes that include scratches and/or other imperfections
- Minor scratches and dents on the housing
- Laptops may have shiny keys or shiny surfaces around the keyboard however all characters will be legible
- Laptop and monitors screens will have imperfections such as minor scratches, minor chips and/or white spots. There will be no cracking on the screen
- Have the same warranty as A Grade
- Pricing will be cheaper than A Grade
C-Grade
- Same as B-Grade except may have unlimited scratches/blemishes on the screen
- May have cracks/chips or dents on the housing
- Have the same warranty as A Grade
- Pricing will be cheaper than B Grade
