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Refurbished HP ProDesk Series Desktops

125 products
41% Off
HP ProDesk 600G4, SFF Desktop, Intel Core i5-8500, 3.0GHz, 16GB RAM, 512GB M2 SSD Windows 10 Pro - Grade A Refurbished HP ProDesk 600G4 SFF Desktop, Intel Core i5-8500, 3.0GHz, 16GB RAM, 512GB SSD Windows 11 Pro - Grade A Refurbished
SKU: SL-481276
$409.00
$409.00
$689.00
This professionally refurbished HP ProDesk 600 G4 desktop offers reliable performance powered by an Intel Core i5-8500 processor from the 8th generation, operating at a base speed of 3.0 GHz across...
58% Off
HP ProDesk 600 G3, SFF Desktop, Intel Core i5-6500, 3.2GHz, 16GB RAM, 512GB SSD, Windows 10 Pro - Grade A Refurbished HP ProDesk 600 G3, SFF Desktop, Intel Core i5-6500, 3.2GHz, 16GB RAM, 512GB SSD, Windows 10 Pro - Grade A Refurbished
SKU: SL-610720
$239.00
$239.00
$569.00
This professionally refurbished HP ProDesk 600 G3 Desktop features a robust Intel Core i5-6500 processor from the 6th generation, operating at a clock speed of 3.2 GHz with four cores, delivering r...
60% Off
HP ProDesk 600 G3, SFF Desktop, Intel Core i7-6700, 3.4GHz,16GB RAM, 512GB SSD, Windows 10 Pro - Grade A Refurbished HP ProDesk 600 G3, SFF Desktop, Intel Core i7-6700, 3.4GHz, 16GB RAM, 512GB SSD, Windows 10 Pro - Grade A Refurbished
SKU: SL-610722
$279.00
$279.00
$689.00
This professionally refurbished HP ProDesk 600 G3 Small Form Factor Desktop is equipped with a robust Intel Core i7-6700 processor, operating at a speed of 3.4 GHz with four cores to deliver reliab...
38% Off
HP ProDesk 400 G6, SFF Desktop, Intel Core i5-9500, 3.0GHz, 16GB RAM, 512GB NVMe, Windows 11 Pro - Grade A Refurbished HP ProDesk 400 G6 SFF Desktop, Intel Core i5-9500, 3.0GHz, 16GB RAM, 512GB SSD, Windows 11 Pro - Grade A Refurbished
SKU: SL-726449642198
$429.00
$429.00
$689.00
The refurbished HP ProDesk 400 G6 Desktop is engineered to deliver reliable and efficient performance for business and professional environments. Powered by a 9th generation Intel Core i5-9500 proc...
20% Off
HP ProDesk 400 G6 SFF Desktop, Intel Core i7-9700, 3.0GHz, 32GB RAM, 1TB SSD, Windows 11 Pro - Grade A Refurbished HP ProDesk 400 G6 SFF Desktop, Intel Core i7-9700, 3.0GHz, 32GB RAM, 512GB SSD, Windows 11 Pro - Grade A Refurbished
SKU: SL-481621
$629.00
$629.00
$789.00
This professionally refurbished HP Prodesk 400 G6 Desktop is powered by the Intel Core i7-9700 processor from the 9th generation, delivering a consistent 3.0 GHz speed for reliable performance acro...
28% Off
HP ProDesk 400 G6 SFF Desktop, Intel Core i7-9700, 3.0GHz, 32GB RAM, 1TB SSD, Windows 11 Pro - Grade A Refurbished HP ProDesk 400 G6 SFF Desktop, Intel Core i7-9700, 3.0GHz, 32GB RAM, 1TB SSD, Windows 11 Pro - Grade A Refurbished
SKU: SL-726449642266
$709.00
$709.00
$989.00
Optimize your work environment with the HP ProDesk 400 G6 SFF Desktop, a reliable refurbished Small Form Factor PC engineered for consistent performance and efficiency. Equipped with an Intel Core ...
37% Off
HP ProDesk 400 G6 SFF Desktop, Intel Core i7-9700, 3.0GHz, 16GB RAM, 512GB SSD, Windows 10 Pro - Grade A Refurbished HP ProDesk 400 G6 SFF Desktop, Intel Core i7-9700, 3.0GHz, 16GB RAM, 512GB SSD, Windows 11 Pro - Grade A Refurbished
SKU: SL-051791280059
$499.00
$499.00
$789.00
The HP ProDesk 400G6 Small Form Factor desktop delivers a reliable and efficient computing experience tailored for professional environments. Equipped with an Intel Core i7-9700 processor and 16GB ...
28% Off
HP ProDesk 400 G5, SFF Desktop, Intel Core i7-8700, 3.2GHz, 16GB RAM, 256GB SSD, Windows 10 Pro- Grade A Refurbished HP ProDesk 400 G5, SFF Desktop, Intel Core i7-8700, 3.2GHz, 16GB RAM, 256GB SSD, Windows 11 Pro- Grade A Refurbished
SKU: SL-481442
$369.00
$369.00
$509.00
This professionally refurbished HP ProDesk 400 G5 Desktop delivers robust performance with its Intel Core i7-8700 8th generation processor, operating at a speed of 3.2 GHz. Equipped with 16GB of RA...
51% Off
HP ProDesk 400 G4, SFF Desktop, Intel Core i5-7400, 3.0GHz, 16GB RAM, 512GB SSD, Windows 10 Pro - Grade A Refurbished HP ProDesk 400 G4, SFF Desktop, Intel Core i5-7400, 3.0GHz, 16GB RAM, 512GB SSD, Windows 10 Pro - Grade A Refurbished
SKU: SL-615026
$319.00
$319.00
$649.00
This professionally refurbished HP ProDesk 400 G4 Small Form Factor Desktop is equipped with a robust Intel Core i5-7400 processor operating at 3.2GHz, designed to deliver reliable performance for ...
34% Off
HP ProDesk 400 G4, SFF Desktop, Intel Core i7-7700, 3.0GHz, 32GB RAM, 512GB SSD, Windows 10 Pro - Grade A Refurbished HP ProDesk 400 G4, SFF Desktop, Intel Core i7-7700, 3.0GHz, 32GB RAM, 512GB SSD, Windows 10 Pro - Grade A Refurbished
SKU: SL-481447
$589.00
$589.00
$889.00
This refurbished HP ProDesk 400 G4 Desktop is engineered to deliver reliable performance for professional environments. Powered by a 7th generation Intel Core i7-7700 processor operating at 3.0 GHz...
50% Off
HP ProDesk 800 G1, Mini Desktop, Intel core i7-4765T, 2.0GHz, 16GB RAM, 512GB SSD, Windows 10 Pro - Grade A Refurbished HP ProDesk 800 G1, Mini Desktop, Intel core i7-4765T, 2.0GHz, 16GB RAM, 512GB SSD, Windows 10 Pro - Grade A Refurbished (Final Sale)
SKU: SL-481763
$249.00
$249.00
$499.00
This professionally refurbished HP ProDesk 800 G1 Desktop is powered by a reliable Intel Core i7-4765T processor from the 4th generation, operating at a base speed of 2.0 GHz with a quad-core confi...
52% Off
HP ProDesk 800 G1, Mini Desktop, Intel core i5-4570T, 2.9GHz, 16GB RAM, 512GB SSD, Windows 10 Pro - Grade A Refurbished HP ProDesk 800 G1, Mini Desktop, Intel core i5-4570T, 2.9GHz, 16GB RAM, 512GB SSD, Windows 10 Pro - Grade A Refurbished (Final Sale)
SKU: SL-481760
$239.00
$239.00
$499.00
The HP ProDesk 800 G1 Mini Form Factor Desktop is a professionally refurbished computing solution designed to deliver reliable performance for business and professional environments. Powered by a 4...
57% Off
HP ProDesk 600 G3, Mini Desktop, Intel Core i7-6700T, 2.8GHz ,16GB RAM, 512GB SSD, Windows 10 Pro - Grade A Refurbished HP ProDesk 600 G3 Mini Desktop, Intel Core i7-6700T, 2.8GHz, 16GB RAM, 512GB SSD, Windows 10 Pro - Grade A Refurbished
SKU: SL-610716
$299.00
$299.00
$699.00
The HP ProDesk 600 G3 Mini desktop is a compact and reliable solution engineered for enhanced productivity and operational efficiency. Equipped with a powerful Intel Core i7-6700T (6th Gen) process...
51% Off
HP ProDesk 600 G3, Mini Desktop, Intel Core i5-7500T, 2.7GHz ,16GB RAM, 512GB NVMe Drive Windows 10 Pro - Grade A Refurbished HP ProDesk 600 G3 Mini Desktop, Intel Core i5-7500T, 2.7GHz, 16GB RAM, 512GB SSD, Windows 10 Pro - Grade A Refurbished
SKU: SL-481471
$349.00
$349.00
$709.00
The HP ProDesk 600 G3 Mini desktop offers a reliable and efficient computing solution tailored for professional environments. Equipped with an Intel Core i5-7500T (7th Gen) processor, this compact ...
58% Off
HP ProDesk 600 G3, Mini Desktop, Intel Core i5-6400T, 2.2GHz ,16GB RAM, 512GB SSD, Windows 10 Pro - Grade A Refurbished HP ProDesk 600 G3 Mini Desktop, Intel Core i5-6400T, 2.2GHz, 16GB RAM, 512GB SSD, Windows 10 Pro - Grade A Refurbished
SKU: SL-610713
$239.00
$239.00
$569.00
Optimize your workspace efficiency with the HP ProDesk 600 G3 Mini desktop, a professionally refurbished system engineered for reliable performance and compact design. Equipped with a 6th Generatio...
42% Off
HP ProDesk 400 G4, SFF Desktop, Intel Core i7-7700, 3.0GHz, 16GB RAM, 256GB SSD, Windows 10 Pro - Grade A Refurbished HP ProDesk 400 G4, SFF Desktop, Intel Core i7-7700, 3.0GHz, 16GB RAM, 256GB SSD, Windows 10 Pro - Grade A Refurbished
SKU: SL-481446
$399.00
$399.00
$689.00
This professionally refurbished HP ProDesk 400 G4 Desktop is equipped with a robust Intel Core i7-7700 processor operating at 3.0 GHz, delivering reliable performance for demanding business applica...
42% Off
HP ProDesk 400 G4, SFF Desktop, Intel Core i5-7400, 3.0GHz, 16GB RAM, 256GB SSD, Windows 10 Pro - Grade A Refurbished HP ProDesk 400 G4, SFF Desktop, Intel Core i5-7400, 3.0GHz, 16GB RAM, 256GB SSD, Windows 10 Pro - Grade A Refurbished
SKU: SL-481445
$339.00
$339.00
$589.00
This professionally refurbished HP ProDesk 400 G4 Desktop delivers reliable performance powered by the Intel Core i5-7400 processor, operating at 3.2GHz. Equipped with 16GB of RAM and a 256GB solid...
61% Off
HP ProDesk 400 G3, Mini Desktop, Intel Core i7-6700T, 2.8GHz ,8GB RAM, 256GB SSD, Windows 10 Pro-Grade A Refurbished HP ProDesk 400 G3 Mini Desktop, Intel Core i7-6700T, 2.8GHz, 8GB RAM, 256GB SSD, Windows 10 Pro-Grade A Refurbished
SKU: SL-610672
$189.00
$189.00
$489.00
The HP ProDesk 400 G3 Mini desktop is a compact, high-performance refurbished workstation engineered to meet the demands of professional environments. Equipped with a 6th Generation Intel Core i7-6...
40% Off
HP ProDesk 600 G3, SFF Desktop, Intel Core i7-6700, 3.4GHz, 32GB RAM, 1TB SSD, Windows 10 Pro - Grade A Refurbished HP ProDesk 600 G3, SFF Desktop, Intel Core i7-6700, 3.4GHz, 32GB RAM, 1TB SSD, Windows 10 Pro - Grade A Refurbished
SKU: SL-610723
$499.00
$499.00
$829.00
This professionally refurbished HP ProDesk 600 G3 Small Form Factor desktop is engineered to deliver reliable performance for demanding business environments. Equipped with a 6th generation Intel C...
67% Off
HP ProDesk 600 G3, SFF Desktop, Intel Core i5-6500, 3.2GHz ,8GB RAM 256GB SSD, Windows 10 Pro - Grade A Refurbished HP ProDesk 600 G3, SFF Desktop, Intel Core i5-6500, 3.2GHz, 8GB RAM, 256GB SSD, Windows 10 Pro - Grade A Refurbished
SKU: SL-610718
$159.00
$159.00
$479.00
This professionally refurbished HP ProDesk 600 G3 Desktop combines reliable performance with efficient operation, featuring an Intel Core i5-6500 processor from the 6th generation, running at 3.2 G...
63% Off
HP ProDesk 600 G3, SFF Desktop, Intel Core i7-6700, 3.4GHz ,16GB RAM, 256GB SSD, Windows 10 Pro - Grade A Refurbished HP ProDesk 600 G3, SFF Desktop, Intel Core i7-6700, 3.4GHz, 16GB RAM, 256GB SSD, Windows 10 Pro - Grade A Refurbished
SKU: SL-610721
$249.00
$249.00
$679.00
This professionally refurbished HP ProDesk 600 G3 Desktop is engineered to deliver reliable performance with its Intel Core i7-6700 6th generation processor operating at 3.4 GHz across four cores. ...
23% Off
HP ProDesk 600 G1, Mini Desktop, Intel Core i5-4570T, 2.9GHz, 8GB RAM, 256GB SSD, Windows 10 Pro - Grade A Refurbished HP ProDesk 600 G1, Mini Desktop, Intel Core i7-4765T, 2.0GHz, 8GB RAM, 256GB SSD, Windows 10 Pro - Grade A Refurbished (Final Sale)
SKU: SL-610837
$309.00
$309.00
$399.00
This professionally refurbished HP ProDesk 600 G1 Desktop features a reliable Intel Core i7-4765T processor operating at 2.0 GHz, delivering consistent performance for demanding business applicatio...
60% Off
HP ProDesk 800 G1, Mini Desktop, Intel core i7-4765T, 2.0GHz, 8GB RAM, 256GB SSD, Windows 10 Pro - Grade A Refurbished HP ProDesk 800 G1, Mini Desktop, Intel core i7-4765T, 2.0GHz, 8GB RAM, 256GB SSD, Windows 10 Pro - Grade A Refurbished (Final Sale)
SKU: SL-481761
$159.00
$159.00
$399.00
This refurbished HP ProDesk 800 G1 Desktop is equipped with a 4th generation Intel Core i7-4765T processor operating at 2.0 GHz, featuring a quad-core architecture designed to deliver reliable and ...
57% Off
HP ProDesk 600 G2, Mini Desktop, Intel Core i7-6700T, 2.8GHz, 16GB RAM, 256GB SSD, Windows 10 Pro - Grade A Refurbished HP ProDesk 600 G2 Mini Desktop, Intel Core i7-6700T, 2.8GHz, 16GB RAM, 256GB SSD, Windows 10 Pro - Grade A Refurbished
SKU: SL-615070
$279.00
$279.00
$649.00
The HP ProDesk 600 G2 Mini desktop is a reliable and compact computing solution engineered to meet the demands of professional environments. Equipped with an Intel Core i7-6700T (6th Gen) Processor...

The HP ProDesk is HP's workhorse commercial desktop, the machine you'll find running quietly in offices, classrooms, and home setups where reliability isn't optional. If you're shopping for refurbished desktop computers and want something built to last, the ProDesk delivers dependable performance backed by enterprise-grade durability.

These are genuine business Grade A machines, not consumer PCs repurposed for office use. That means better components, longer support cycles, and specs that hold up across years of daily use.

What You're Getting With a Refurb ProDesk

Every HP ProDesk that System Liquidation sells is Grade A and configured for real workloads:

• Intel Core processors, typically i5 and i7, across a range of generations
• Memory options that scale from everyday multitasking to heavier workloads and multiple apps at once
• SSD storage for fast boot times and responsive performance, in a range of capacities
• Windows 10 Pro or Windows 11 Pro, installed and ready
• Multiple form factors like mini and small form factor options for tight desks, plus full tower configurations when you need more expandability

Frequently Asked Questions

The ProDesk was designed for commercial environments, which means it's built to tighter tolerances than a consumer desktop: better thermal management, more RAM capacity, and longer parts availability. For anyone buying a refurbished desktop pc for serious daily use, that build quality matters.

For most remote work, office software, and everyday use, a mid-range generation hits the sweet spot. If you're running heavier workloads, virtual machines, large spreadsheets, or video conferencing alongside multiple apps, step up to a newer generation with an i7. Older generations are still capable of lighter tasks and are usually the most budget-friendly options in the lineup.

16GB handles the vast majority of business and student workloads comfortably. If you're in IT, running development environments, or keeping a large number of applications open at once, higher-capacity configurations give you real breathing room. Larger options are available for power users who know they need them.

Yes. Almost every ProDesk in this collection ships with Windows 10 Pro or Windows 11 Pro, installed and activated and ready to use right out of the box. In the rare case a unit is listed without an OS, it's flagged clearly in the product listing, but that's very much the exception.

The HP ProDesk is ideal for businesses, schools, remote workers, students, and home office users looking for reliable performance at an affordable price. As a business-class refurbished desktop PC, it delivers the durability and consistency needed for daily workloads while offering strong value for organizations purchasing bulk refurbished computers.