HP SSF Prodesk 400 G4, has been fully stripped cleaned and new thermal paste applied. it is in good used condition ready for a second Life, includes a genuine windows 10 Pro license fully installed and all drivers ready to go. If you would like us to upgrade this to windows 11 before shipping we can do so for you FOC (please be aware the cpu isn't officially supported so will have to use the TPM bypass method to get it installed)

Intel Core i5 6500, 8GB of DDR4 memory and a 255gb SSD. perfect little office machine

Our Testing Procedure

Every component we sell is thoroughly cleaned (to the best of our ability) and tested for a minimum of 24 hours. We use industry-standard tools such as OCCTPrime95FurMark3DMark, and Cinebench to benchmark and stress-test each item, ensuring it performs reliably under load.


Our Guarantee

While most of the parts we offer are out of their original warranty period (unless otherwise stated), we believe in fairness and the value of keeping older PCs running. If you experience any issues within 3 months of purchase, please don’t hesitate to reach out — we’ll do our best to assist you.

Old tech can eventually fail, and while we’re committed to the quality of the equipment we sell, we can’t guarantee long-term longevity. That said, we only offer hardware we believe is still capable and worth repurposing.


Where Do These Parts Come From?

My business partner and I run an MSP (Managed Service Provider) and manage hundreds of business machines. Every item we sell has been part of a system we've personally overseen throughout its lifecycle — from initial build and deployment to retirement.

While some may believe older machines have no place in modern setups, we disagree. Whether you're building a Proxmox homelab, need a budget GPU for CAD rendering, or just want to experiment with older hardware, there's still plenty of life left in these components. Just because a machine isn’t the latest and greatest doesn’t mean it can’t be useful.