


Certified Refurbished HP ProDesk 400 G4 Desktop Mini - Compact Business Computing
This certified refurbished HP ProDesk 400 G4 Desktop Mini features an Intel Core i5-8500T 2.1GHz 8th generation processor with 6 cores, 8GB DDR4 memory, 256GB NVMe SSD storage, Intel UHD Graphics 630, and an ultra-compact 177 x 175 x 34.3mm form factor weighing just 1.3kg, delivering reliable business performance in an incredibly space-efficient design.
This ultra-small form factor desktop is perfect for businesses seeking maximum performance in minimal space. Whether you're setting up a modern office environment, creating digital signage solutions, or need a powerful yet compact workstation, this certified refurbished HP ProDesk delivers enterprise-grade reliability without compromising on desk space.
Key Features & Benefits
- Space-Efficient Design: At just over 1 litre in volume, this desktop can be VESA mounted behind monitors or tucked away in tight spaces
- Reliable Performance: 8th generation Intel Core i5-8500T processor with Turbo Boost up to 3.5GHz handles demanding business applications effortlessly
- Fast Storage: 256GB NVMe SSD provides rapid boot times and application loading
- Business Connectivity: Comprehensive port selection including DisplayPort, VGA, multiple USB ports, and Gigabit Ethernet
- Expandable Memory: Upgradeable to 32GB RAM through dual SODIMM slots for future-proofing
- Energy Efficient: ENERGY STAR certified with 35W TDP processor reduces power consumption
- Professional Security: TPM 2.0 security chip and Windows 11 Pro provide enterprise-level data protection
Essential Technical Specifications
- Processor: Intel Core i5-8500T (6 cores/6 threads, 2.1GHz base, 3.5GHz boost, 9MB cache)
- Memory: 8GB DDR4-2666 SODIMM (expandable to 32GB)
- Storage: 256GB NVMe M.2 SSD
- Graphics: Intel UHD Graphics 630 (integrated)
- Operating System: Windows 11 Pro (64-bit)
- Connectivity: Gigabit Ethernet, multiple USB 3.1 and USB 2.0 ports
- Display Outputs: DisplayPort, VGA (optional)
- Dimensions: 177 x 175 x 34.3mm
- Weight: 1.3kg
- Power: 65W external adapter (100-240V AC)
Windows 11 Pro Advantages
Windows 11 Pro offers enhanced security features, domain join capabilities, and advanced management tools ideal for business environments. The streamlined interface improves productivity, while built-in security features like Windows Hello and BitLocker provide robust data protection. However, some users may need time to adapt to the updated interface, and older software compatibility should be verified before deployment.
Quality Assurance & Testing
All units are verified refurbished through Reboot IT’s thorough testing process using cutting-edge diagnostic software. We've tested all features and functions to ensure optimal performance and reliability. As industry experts since 2001, Reboot IT maintains the highest standards for refurbished business computing equipment.
Each HP ProDesk 400 G4 Desktop Mini undergoes comprehensive testing including:
- Full hardware diagnostics and stress testing
- Operating system installation and optimisation
- Port and connectivity verification
- Thermal performance validation
- Security feature testing
Warranty & Support
This certified refurbished HP ProDesk 400 G4 Desktop Mini is sold by Reboot IT and includes a comprehensive 1 year warranty, providing peace of mind for your business investment. Our warranty covers all hardware components and includes technical support from our experienced team.
Why Choose This Refurbished Desktop
This HP ProDesk represents exceptional value for businesses requiring reliable computing in constrained spaces. The combination of modern 8th generation processing power, fast SSD storage, and ultra-compact design makes it ideal for modern office environments, point-of-sale systems, digital signage, or anywhere space is at a premium.
Transform your workspace with this certified refurbished HP ProDesk 400 G4 Desktop Mini — order today and experience premium business computing in an incredibly compact package.
Ultra-Slim |
Manufacturer Warranty | 1 Year |
Features | None |
Item Height | None |
RAM Size | 8GB |
Graphics Processing Type | Integrated/On-Board Graphics |
Chipset | None |
Item Width | None |
Model | ProDesk 400 G4 DM |
Type | Desktop |
Resolution | none |
Processor | Intel Core i5-8500T 2.10 GHz |
Release Date | Q1'17 |
Processor Model | Core i5-8500T |
Colour | None |
Item Weight | None |
Storage Type | NVMe (Non-Volatile Memory Express) |
Optical Drive | None |
Operating System Edition | Windows 11 Pro |
SSD Capacity | 256GB |
Memory Type | DDR4 SO-DIMM |
Cores | 6 |
Other Software | None |
Brand | HP |
L2 Cache | None |
Form Factor | Ultra Small Form Factor (USDT) |
Part Number | 4VG41PA#ABG |
Screen Size | None |
Maximum Ram Capacity | None |
Custom Bundle | No |
Motherboard Model | None |
Series | HP ProDesk |
Operating System | Windows 11 Pro |
RAM Type | DDR4 SO-DIMM |
Most Suitable For | Office |
Connectivity | USB 3.0|HDMI|RJ-45 |
Max Turbo Speed | None |
MPN | None |
Processor Speed | 2.10GHz |
Release Year | 2017 |
Hard Drive Capacity | 256GB |
GPU | Intel CometLake-S GT2 [UHD 630] Graphics |
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 monitors are for those who expect a display showing very little to no signs of previous use. With minimal scuffing or abrasions on the housing/frame and no imperfections on the screen, these units offer an almost-new viewing experience.
"Good" Grade - Laptops
"Good" grade laptops are fully functional but come with signs of more extensive use compared to Excellent grade units. This includes scratches on the laptop body, heavier wear on keyboards, and possible small dents or paint chips. Screens may show uneven light diffusion and subtle blemishes but no cracks.
"Good" Grade - Desktops
Similar to laptops, "Good" grade desktops may exhibit light scratches and more noticeable wear on the case compared to "Excellent" grade PCs. Small dings or paint chips might be present but do not affect functionality.
"Good" Grade - Monitors
Displays in the "Good" grade have been fully tested and are functional but may include body scratches, minor cracks, or a loose/wobbly base. Screens could display uneven light diffusion and moderate blemishes but remain free from cracks.
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