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Refurbished HP ProDesk Series Desktops

134 products
20% Off
HP ProDesk 400 G1 Micro Tower, Intel Core i5-4570, 3.2GHz, 16GB RAM, 512GB SSD, Windows 10 Pro - Grade A Refurbished HP ProDesk 400 G1 Micro Tower, Intel Core i5-4570, 3.2GHz, 16GB RAM, 512GB SSD, Windows 10 Pro - Grade A Refurbished (Final Sale)
SKU: SL-610548
$239.00
$239.00
$299.00
This professionally refurbished HP ProDesk 400G1 Microtower desktop features an Intel Core i5-4570 processor operating at 3.2GHz, delivering reliable performance for business and professional appl...
23% Off
HP ProDesk 600G4 SFF Desktop, Intel Core i7-8700, 3.2GHz, 32GB RAM, 1TB NVMe, Windows 11 Pro - Grade A Refurbished HP ProDesk 600G4 SFF Desktop, Intel Core i7-8700, 3.2GHz, 32GB RAM, 1TB NVMe, Windows 11 Pro - Grade A Refurbished
SKU: SL-481716
$689.00
$689.00
$899.00
This refurbished HP ProDesk 600 G4 Desktop is equipped with a robust Intel Core i7-8700 processor from the 8th generation, operating at a clock speed of 3.2 GHz with six cores. It features 32GB of ...
37% Off
HP ProDesk 600 G5 SSF Desktop, Intel Core i5-9500, 3.0GHz, 16GB RAM, 512GB SSD, Windows 10 Pro- Grade A Refurbished HP ProDesk 600 G5 SFF Desktop, Intel Core i7-9700, 3.0GHz, 16GB RAM, 256GB NVMe SSD, Windows 11 Pro, Grade A Refurbished - EE
SKU: SL-726449678524
$379.00
$379.00
$599.00
The refurbished HP ProDesk 600 G5 Small Form Factor Desktop is engineered to deliver reliable performance for professional environments. Powered by a 9th generation Intel Core i5-9500 processor run...
28% Off
HP ProDesk 600 G5 SSF Desktop, Intel Core i5-9500, 3.0GHz, 32GB RAM, 1TB SSD, Windows 11 Pro- Grade A Refurbished HP ProDesk 600 G5 SSF Desktop, Intel Core i5-9500, 3.0GHz, 32GB RAM, 1TB SSD, Windows 11 Pro- Grade A Refurbished
SKU: SL-481561
$649.00
$649.00
$899.00
This professionally refurbished HP EliteDesk 600 G5 desktop delivers reliable performance with its Intel Core i5-9500 9th generation processor operating at 3.0 GHz. Equipped with 32GB of RAM and a ...
25% Off
HP Prodesk 600 G6, SFF Desktop, Intel Core i5-10400, 2.9GHz, 32GB RAM, 1TB SSD, Windows 11 Pro - Grade A Refurbished HP Prodesk 600 G6, SFF Desktop, Intel Core i5-10400, 2.9GHz, 32GB RAM, 1TB SSD, Windows 11 Pro - Grade A Refurbished
SKU: SL-481736
$749.00
$749.00
$999.00
This professionally refurbished HP ProDesk 600 G6 Desktop is equipped with a reliable Intel Core i5-10400 processor, operating at a steady 2.9GHz across its six cores, delivering consistent perform...
39% Off
HP ProDesk 600 G6 SFF Desktop, Intel Core i5-10500, 3.1GHz, 16GB RAM, 256GB NVMe SSD, Windows 11 Pro, Grade A Refurbished - EE HP Prodesk 600 G6, SFF Desktop, Intel Core i5-10400, 2.9GHz, 16GB RAM, 256GB SSD, Windows 11 Pro - Grade A Refurbished
SKU: SL-481734
$489.00
$489.00
$799.00
This professionally refurbished HP Prodesk 600 G6 Desktop is engineered to deliver reliable performance for business and professional environments. Powered by a 10th generation Intel Core i5-10400 ...
35% Off
HP ProDesk 600 G6, Mini Desktop, Intel Core i7-10700T, 2.0GHz, 32GB RAM, 1TB NVMe, Windows 11 Pro- Grade A Refurbished HP ProDesk 600 G6, Mini Desktop, Intel Core i7-10700T, 2.0GHz, 32GB RAM, 1TB NVMe, Windows 11 Pro- Grade A Refurbished
SKU: SL-481646
$849.00
$849.00
$1,299.00
This professionally refurbished HP ProDesk 600 G6 desktop is equipped with a robust Intel Core i7-10700T processor, operating at a base speed of 2.0 GHz, delivering reliable performance for demandi...
20% Off
HP ProDesk 800 G4, Tower Desktop, Intel Core i7-8700, 3.20GHz, 32GB RAM, 1TB SSD, Windows 10 Pro - Grade A Refurbished HP ProDesk 800 G4, Tower Desktop, Intel Core i7-8700, 3.20GHz, 32GB RAM, 1TB SSD, Windows 11 Pro - Grade A Refurbished
SKU: SL-482357
$719.00
$719.00
$899.00
This professionally refurbished HP ProDesk 800 G4 Tower Desktop is powered by an Intel Core i7-8700 8th generation processor with a base speed of 3.20 GHz across four cores, delivering reliable and...
30% Off
HP ProDesk 600 G6 Tower Desktop, Intel Core i5-10400, 2.9GHz, 32GB RAM, 512GB SSD, Windows 11 Pro - Grade A Refurbished HP ProDesk 600 G6 Tower Desktop, Intel Core i5-10400, 2.9GHz, 32GB RAM, 512GB SSD, Windows 11 Pro - Grade A Refurbished
SKU: SL-726449663582
$699.00
$699.00
$999.00
The HP ProDesk 600 G6 Tower Desktop is a robust, professionally refurbished workstation engineered to meet the demands of modern productivity environments. Equipped with a 10th Generation Intel Cor...
18% Off
HP ProDesk 600 G3, Tower Desktop, Intel Core i7-6700, 3.4GHz, 16GB RAM, 512GB SSD, Windows 10 Pro - Grade A Refurbished HP ProDesk 600 G3, Tower Desktop, Intel Core i7-6700, 3.4GHz, 64GB RAM, 1TB SSD, Windows 10 Pro - Grade A Refurbished
SKU: SL-051791250600
$819.00
$819.00
$999.00
This refurbished HP ProDesk 600 G3 desktop features a robust Intel Core i7-6700 processor operating at 3.4 GHz, delivering reliable performance for demanding business applications. Equipped with 64...
28% Off
HP ProDesk 400 G6, Mini Desktop, Intel Core i5-10500T, 2.3GHz, 32GB RAM, 1TB NVMe, Windows 10 Pro- Grade A Refurbished HP ProDesk 400 G6, Mini Desktop, Intel Core i5-10500T, 2.3GHz, 32GB RAM, 1TB NVMe, Windows 11 Pro- Grade A Refurbished
SKU: SL-051791280061
$719.00
$719.00
$999.00
This professionally refurbished HP ProDesk 400 G6 Mini Desktop is engineered to deliver reliable performance for business and professional environments. Powered by a 10th generation Intel Core i5-1...
42% Off
HP ProDesk 400 G5, Mini Desktop, Intel Core i5-9500T, 2.2GHz, 16GB RAM, 256GB NVME, Windows 10 Pro- Grade A Refurbished HP ProDesk 400 G5, Mini Desktop, Intel Core i5-9500T, 2.2GHz, 16GB RAM, 256GB NVME, Windows 11 Pro- Grade A Refurbished
SKU: SL-051791280056
$349.00
$349.00
$599.00
The HP ProDesk 400 G5 Mini Form Factor Desktop offers reliable performance tailored for professional environments. Powered by the Intel Core i5-9500T processor with a base speed of 2.2 GHz, this re...
29% Off
HP ProDesk 600 G6 Tower Desktop, Intel Core i5-10400, 2.9GHz, 32GB RAM, 512GB SSD, Windows 11 Pro - Grade A Refurbished HP ProDesk 600 G6 Tower Desktop, Intel Core i5-10400, 2.9GHz, 16GB RAM, 512GB SSD, Windows 11 Pro - Grade A Refurbished
SKU: SL-726449678579
$569.00
$569.00
$799.00
Optimize your workflow with the HP ProDesk 600 G6 Tower Desktop, a reliable and professionally refurbished workstation engineered for consistent productivity and operational efficiency. Equipped wi...
26% Off
HP ProDesk 600 G1, SFF Desktop, Intel Core i7-4770, 3.4GHz, 16GB RAM, 512GB SSD, Windows 10 Pro - Grade A Refurbished HP ProDesk 600 G1, SFF Desktop, Intel Core i5-4570, 3.2GHz, 16GB RAM, 240GB SSD, DVD, Windows 10 Pro - Grade A Refurbished
SKU: SL-42625210
$259.00
$259.00
$349.00
This professionally refurbished HP ProDesk 600 G1 Small Form Factor Desktop is powered by a reliable Intel Core i7-4770 processor, operating at 3.4GHz with four cores to ensure efficient multitaski...
19% Off
HP Prodesk 600 G6, SFF Desktop, Intel Core i5-10400, 2.9GHz, 32GB RAM, 1TB SSD, Windows 11 Pro - Grade A Refurbished HP Prodesk 600 G6, SFF Desktop, Intel Core i5-10400, 2.9GHz, 32GB RAM, 1TB SSD, Windows 11 Pro - Grade A Refurbished
SKU: SL-726449642419
$889.00
$889.00
$1,099.00
This professionally refurbished HP ProDesk 600 G6 Desktop is equipped with a robust Intel Core i7-10700 10th generation processor operating at 2.9 GHz, featuring 8 cores to efficiently handle deman...
31% Off
HP ProDesk 400 G9, SFF Desktop, Intel Core i5-12400, 2.50GHz, 16GB RAM, 256GB M2 NVMe SSD, Windows 11 Pro, Grade A Refurbished HP ProDesk 400 G9, SFF Desktop, Intel Core i7-12700F, 1.60GHz, 32GB RAM, 1TB SSD, Windows 11 Pro, Grade A Refurbished
SKU: SL-726449660246
$1,039.00
$1,039.00
$1,499.00
This refurbished HP ProDesk 400 G9 Small Form Factor Desktop is equipped with a robust Intel Core i7-12700F processor operating at 1.60 GHz, delivering reliable performance for demanding business a...
37% Off
HP ProDesk 400 G9, SFF Desktop, Intel Core i5-12400, 2.50GHz, 16GB RAM, 256GB M2 NVMe SSD, Windows 11 Pro, Grade A Refurbished HP ProDesk 400 G9, SFF Desktop, Intel Core i7-12700F, 1.60GHz, 32GB RAM, 512GB SSD, Windows 11 Pro, Grade A Refurbished
SKU: SL-726449660239
$939.00
$939.00
$1,499.00
This refurbished HP ProDesk 400 G9 Desktop features a robust Intel Core i7-12700F 12th generation processor operating at 1.60 GHz, delivering reliable performance for demanding business application...
36% Off
HP ProDesk 400 G6, Mini Desktop, Intel Core i5-10500T, 2.3GHz, 16GB RAM, 512GB NVMe, Windows 10 Pro- Grade A Refurbished HP ProDesk 400 G6, Mini Desktop, Intel Core i5-10500T, 2.3GHz, 16GB RAM, 512GB NVMe, Windows 11 Pro- Grade A Refurbished
SKU: SL-726449649708
$509.00
$509.00
$799.00
This professionally refurbished HP ProDesk 400 G6 Mini Desktop delivers reliable performance powered by an Intel Core i5-10500T processor operating at 2.3 GHz. Equipped with 16GB of RAM and a 512GB...
30% Off
HP ProDesk 400 G7, SFF Desktop, Intel Core i5-10400, 2.90GHz, 8GB RAM, 256GB SSD, Windows 10 Pro - Grade A Refurbished HP ProDesk 400 G7, SFF Desktop, Intel Core i5-10500, 3.10GHz, 16GB RAM, 256GB SSD, Windows 11 Pro - Grade A Refurbished
SKU: SL-726449660260
$489.00
$489.00
$699.00
This professionally refurbished HP ProDesk 400 G7 Desktop is powered by a reliable Intel Core i5-10500 10th generation processor running at 3.10 GHz, delivering consistent performance for business ...
42% Off
HP ProDesk 400 G6, SFF Desktop, Intel Core i5-9500, 3.0GHz, 16GB RAM, No Hard Drive, No Operating system - Grade A Refurbished HP ProDesk 400 G6, SFF Desktop, Intel Core i5-9500, 3.0GHz, 16GB RAM, No Hard Drive, No Operating system - Grade A Refurbished
SKU: SL-049500453151
$349.00
$349.00
$599.00
This refurbished HP ProDesk 400 G6 desktop is engineered to deliver reliable performance for professional environments. Powered by a 9th generation Intel Core i5-9500 processor with a base speed of...
41% Off
HP ProDesk 400 G6, SFF Desktop, Intel Core i7-9700, 3.6GHz, 16GB RAM, No Hard Drive, No Operating system - Grade A Refurbished HP ProDesk 400 G6, SFF Desktop, Intel Core i7-9700, 3.6GHz, 16GB RAM, No Hard Drive, No Operating system - Grade A Refurbished
SKU: SL-490360
$409.00
$409.00
$699.00
This professionally refurbished HP ProDesk 400 G6 Desktop is equipped with a robust Intel Core i7-9700 processor from the 9th generation, operating at a speed of 3.6 GHz. With 16GB of RAM, it ensur...
45% Off
HP ProDesk 600G4 Mini Desktop, Intel Core i5-8500T, 3.2GHz, 8GB RAM, 128GB M2 NVMe, Windows 10 Pro - Grade A Refurbished HP ProDesk 600 G4 Mini Desktop, Intel Core i5-8500T, 2.1GHz, 16GB RAM, 256GB SSD, Windows 11 Pro Grade A Refurbished
SKU: SL-726449635787
$329.00
$329.00
$599.00
Experience reliable performance and efficient computing with the HP ProDesk 600 G4 Mini desktop, a professionally refurbished system tailored for business and professional environments. Equipped wi...
64% 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, 16GB RAM, 256GB SSD, Windows 10 Pro - Grade A Refurbished (Final Sale)
SKU: SL-610838
$179.00
$179.00
$499.00
This professionally refurbished HP ProDesk 600 G1 Desktop features a reliable Intel Core i7-4765T (4th generation) processor operating at 2.0 GHz with four cores, delivering consistent performance ...
54% 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 i5-4570T, 2.9GHz, 8GB RAM, 256GB SSD, Windows 10 Pro - Grade A Refurbished (Final Sale)
SKU: SL-610834
$139.00
$139.00
$301.00
This refurbished HP ProDesk 600 G1 Mini Form Factor Desktop is engineered to deliver reliable performance for professional and business environments. Powered by a 4th generation Intel Core i5-4570T...

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.