The HP ProDesk 400 G6 Small Form Factor is a renewed business-class desktop that delivers reliable performance with a modern 9th Gen Intel Core i5-9500 processor. Running at 3.0GHz with Turbo Boost up to 4.4GHz, this six-core CPU is built for multitasking and efficiency in professional environments.
With 16GB of DDR4 memory and a fast 512GB SSD, it provides both the speed and storage capacity needed for office applications, data management, and everyday productivity. The SFF case makes it ideal for workspaces where desk space is limited, while Windows 10 Pro ensures enterprise-grade security and productivity features straight out of the box.
Pros and Cons
Pros:
9th Gen Intel i5-9500 with six cores handles demanding multitasking
16GB DDR4 RAM for smooth and responsive performance
512GB SSD for fast boot times and efficient data access
Compact SFF case saves valuable workspace
Windows 10 Pro with professional-grade security tools
Renewed with warranty for peace of mind
Cons:
No dedicated GPU, limited to integrated Intel UHD Graphics 630
512GB storage may need expansion for heavy media users
SFF chassis restricts high-end hardware upgrades
What the Product is Used For
The ProDesk 400 G6 SFF is designed for:
Office productivity software such as Microsoft 365, Sage, and QuickBooks
Business multitasking across multiple apps and browser tabs
Remote work and video conferencing with reliable Windows 10 Pro
Data storage and management with SSD performance
Small or medium business environments where space efficiency matters
Why We Like This Product (YPC Team Review)
At YPC, we like the HP ProDesk 400 G6 because it bridges the gap between performance and practicality. In our office tests, the i5-9500’s six cores handled spreadsheets, database access, and video calls all at once without slowing down. The 16GB DDR4 memory meant no bottlenecks, and the 512GB SSD ensured fast start-ups every morning. Its small form factor case also made it a neat fit on our desks without sacrificing reliability.
Alternatives Worth Considering
Dell OptiPlex 7040 SFF i7-6700: An older system with strong multitasking but limited to 6th Gen CPUs.
HP EliteDesk 800 G2 SFF i5-6500: A more affordable option with DDR4 RAM but older 6th Gen CPU.
HP ProDesk 600 G6 i7-9700: A more powerful 9th Gen alternative with 8-core CPU for heavier workloads.
Tips for Correct Use
Keep the SSD for your OS and main applications to maintain speed.
Add external or secondary drives if handling large files or backups.
Position the SFF case in a ventilated spot to prevent overheating.
Regularly update Windows 10 Pro for improved security and stability.
Consider a low-profile GPU upgrade if you need graphics acceleration.
Comparisons
Versus HP EliteDesk 800 G2: The ProDesk 400 G6 has a newer 9th Gen CPU and improved DDR4 RAM performance.
Compared to Dell OptiPlex 7040 SFF: The Dell is older but often cheaper, while the HP provides a more future-proof setup.
Against ProDesk 600 G6: The 400 G6 is cost-effective, while the 600 series offers more cores and higher-end features.
Full Technical Specification
Processor: Intel Core i5-9500, 9th Gen, 6 cores, 3.0GHz base, up to 4.4GHz Turbo
Memory: 16GB DDR4-SDRAM
Storage: 512GB SSD
Graphics: Intel UHD Graphics 630 (integrated)
Networking: Gigabit Ethernet (Wi-Fi not specified)
Case: Small Form Factor (SFF), black
Operating System: Windows 10 Professional 64-bit
Warranty: Renewed with at least 1-year limited warranty
FAQs
1. Can I upgrade the RAM?
Yes, up to 64GB DDR4 depending on configuration.
2. Does it support multiple monitors?
Yes, via onboard graphics outputs (DisplayPort/HDMI depending on build).
3. Can I add a graphics card?
Yes, but only low-profile cards fit in the SFF case.
4. Is Wi-Fi included?
Not specified; Gigabit Ethernet is built-in. A Wi-Fi dongle may be required.
5. Is Windows 10 Pro genuine?
Yes, pre-installed and activated.
6. Can I upgrade to Windows 11 Pro?
Yes, the i5-9500 fully supports Windows 11.
7. How fast is the SSD?
As a 512GB SSD, it provides quick boot times and responsive app performance.
8. Does it come with peripherals?
Renewed models may include generic or Dell/HP branded accessories.
9. What warranty is provided?
At least a 1-year limited warranty under the renewed program.
10. Is the case compact?
Yes, the SFF case is designed for small office environments.
Looking for more options?
Browse our full range of Desktop PC's for other great choices to suit your space, goals, and budget.
