The products
The Benefits of Refurbished Workstations
Why Pick Refurbished Workstations?
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Save money and get the most out of your budget.
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Rigorous testing ensures excellent performance for refurbished workstations.
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Choosing refurbished helps reduce electronic waste and promotes sustainability.
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Refurbished workstations can be quickly adapted to your needs.
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Trustworthy sellers offer warranties and reliable customer support.
Why choose Bytestock?
At Bytestock, we offer refurbished IT Hardware at affordable prices and worldwide shipping. You can rely on us to provide high-quality products that our engineering team has tested. We offer various refurbished options for hardware, all of which come with a 5-year return-to-base warranty. Save up to 70% off the MSRP when you buy a customisable or pre-configured workstation from Bytestock!
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Configure Your OwnHP Z8 G4 Tower Workstation - Configure Your Own
- Refurbished - 5 Year Bytestock Return to Base Warranty
- Up to 2 x 2nd Generation Intel Xeon Scalable Processor (28 Cores)
- Up to 1.5TB of Memory (24 DIMM Slots)
- Integrated SATA Raid Controller
- Integrated Intel I219LM
- Built-In 1125W Power Supply
£840.00 £700.00 -
Dell Precision R7920 2 x 10 Core 2.40GHz Silver 4210R 64GB 4.96TB SATA Storage RTX 4000
- 8 x 3.5" (LFF) Large Form Factor
- 2 x Intel Xeon Silver 4210R 2.40GHz 10-Core CPU Processors
- 64GB DDR4 Memory
- 2 x Dell 3.5" 2TB 7.2K 6GBPS SATA Hard Drive
- 1 x Dell 2.5" 960GB 6GBPS SATA SSD Drive
- On-Board Perc S140 Software Raid Controller
- 1 x NVIDIA Quadro RTX 4000 8GB GDDR6 Graphics Card
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Dell Precision R7920 2 x 10 Core 2.40GHz Silver 4210R 64GB 14.96TB SATA Storage RTX 4000
- 8 x 3.5" (LFF) Large Form Factor
- 2 x Intel Xeon Silver 4210R 2.40GHz 10-Core CPU Processors
- 64GB DDR4 Memory
- 7 x Dell 3.5" 2TB 7.2K 6GBPS SATA Hard Drive
- 1 x Dell 2.5" 960GB 6GBPS SATA SSD Drive
- On-Board Perc S140 Software Raid Controller
- 1 x NVIDIA Quadro RTX 4000 8GB GDDR6 Graphics Card
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Dell Precision R7920 2 x 12 Core 2.40GHz Silver 4214R 64GB 16.96TB SATA Storage RTX 4000
- 8 x 3.5" (LFF) Large Form Factor
- 2 x Intel Xeon Silver 4214R 2.40GHz 12-Core CPU Processors
- 64GB DDR4 Memory
- 2 x Dell 3.5" 8TB 7.2K 6GBPS SATA Hard Drive
- 1 x Dell 2.5" 960GB 6GBPS SATA SSD Drive
- On-Board Perc S140 Software Raid Controller
- 1 x NVIDIA Quadro RTX 4000 8GB GDDR6 Graphics Card
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Dell Precision R7920 2 x 12 Core 2.40GHz Silver 4214R 128GB 56.96TB SATA Storage RTX 4000
- 8 x 3.5" (LFF) Large Form Factor
- 2 x Intel Xeon Silver 4214R 2.40GHz 12-Core CPU Processors
- 128GB DDR4 Memory
- 7 x Dell 3.5" 8TB 7.2K 6GBPS SATA Hard Drive
- 1 x Dell 2.5" 960GB 6GBPS SATA SSD Drive
- On-Board Perc S140 Software Raid Controller
- 1 x NVIDIA Quadro RTX 4000 8GB GDDR6 Graphics Card
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Dell Precision R7920 2 x 16 Core 2.90GHz Gold 6226R 64GB 16.96TB SATA Storage RTX 4000
- 8 x 3.5" (LFF) Large Form Factor
- 2 x Intel Xeon Gold 6226R 2.90GHz 16-Core CPU Processors
- 64GB DDR4 Memory
- 2 x Dell 3.5" 8TB 7.2K 6GBPS SATA Hard Drive
- 1 x Dell 2.5" 960GB 6GBPS SATA SSD Drive
- On-Board Perc S140 Software Raid Controller
- 1 x NVIDIA Quadro RTX 4000 8GB GDDR6 Graphics Card
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Dell Precision R7920 2 x 16 Core 2.90GHz Gold 6226R 128GB 56.96TB SATA Storage RTX 4000
- 8 x 3.5" (LFF) Large Form Factor
- 2 x Intel Xeon Gold 6226R 2.90GHz 16-Core CPU Processors
- 128GB DDR4 Memory
- 7 x Dell 3.5" 8TB 7.2K 6GBPS SATA Hard Drive
- 1 x Dell 2.5" 960GB 6GBPS SATA SSD Drive
- On-Board Perc S140 Software Raid Controller
- 1 x NVIDIA Quadro RTX 4000 8GB GDDR6 Graphics Card
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Dell Precision R7920 2 x 20 Core 2.10GHz Gold 6230 128GB 14.96TB SATA Storage RTX 4000
- 8 x 3.5" (LFF) Large Form Factor
- 2 x Intel Xeon Gold 6230 2.10GHz 20-Core CPU Processors
- 128GB DDR4 Memory
- 7 x Dell 3.5" 2TB 7.2K 6GBPS SATA Hard Drive
- 1 x Dell 2.5" 960GB 6GBPS SATA SSD Drive
- On-Board Perc S140 Software Raid Controller
- 1 x NVIDIA Quadro RTX 4000 8GB GDDR6 Graphics Card
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Dell Precision R7920 2 x 20 Core 2.10GHz Gold 6230 256GB 56.96TB SATA Storage RTX 4000
- 8 x 3.5" (LFF) Large Form Factor
- 2 x Intel Xeon Gold 6230 2.10GHz 20-Core CPU Processors
- 256GB DDR4 Memory
- 7 x Dell 3.5" 8TB 7.2K 6GBPS SATA Hard Drive
- 1 x Dell 2.5" 960GB 6GBPS SATA SSD Drive
- On-Board Perc S140 Software Raid Controller
- 1 x NVIDIA Quadro RTX 4000 8GB GDDR6 Graphics Card
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Dell Precision R7920 2 x 12 Core 3.00GHz Gold 6136 64GB 4.96TB SATA Storage RTX 5000
- 8 x 3.5" (LFF) Large Form Factor
- 2 x Intel Xeon Gold 6136 3.00GHz 12-Core CPU Processors
- 64GB DDR4 Memory
- 2 x Dell 3.5" 2TB 7.2K 6GBPS SATA Hard Drive
- 1 x Dell 2.5" 960GB 6GBPS SATA SSD Drive
- On-Board Perc S140 Software Raid Controller
- 1 x NVIDIA Quadro RTX 5000 16GB GDDR6 Graphics Card
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Dell Precision R7920 2 x 12 Core 3.00GHz Gold 6136 128GB 16.96TB SATA Storage RTX 5000
- 8 x 3.5" (LFF) Large Form Factor
- 2 x Intel Xeon Gold 6136 3.00GHz 12-Core CPU Processors
- 128GB DDR4 Memory
- 2 x Dell 3.5" 8TB 7.2K 6GBPS SATA Hard Drive
- 1 x Dell 2.5" 960GB 6GBPS SATA SSD Drive
- On-Board Perc S140 Software Raid Controller
- 1 x NVIDIA Quadro RTX 5000 16GB GDDR6 Graphics Card
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Dell Precision R7920 2 x 18 Core 2.60GHz Gold 6240 128GB 16.96TB SATA Storage RTX 4000
- 8 x 3.5" (LFF) Large Form Factor
- 2 x Intel Xeon Gold 6240 2.60GHz 18-Core CPU Processors
- 128GB DDR4 Memory
- 2 x Dell 3.5" 8TB 7.2K 6GBPS SATA Hard Drive
- 1 x Dell 2.5" 960GB 6GBPS SATA SSD Drive
- On-Board Perc S140 Software Raid Controller
- 1 x NVIDIA Quadro RTX 4000 8GB GDDR6 Graphics Card
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Dell Precision R7920 2 x 18 Core 2.60GHz Gold 6240 256GB 56.96TB SATA Storage RTX 4000
- 8 x 3.5" (LFF) Large Form Factor
- 2 x Intel Xeon Gold 6240 2.60GHz 18-Core CPU Processors
- 256GB DDR4 Memory
- 7 x Dell 3.5" 8TB 7.2K 6GBPS SATA Hard Drive
- 1 x Dell 2.5" 960GB 6GBPS SATA SSD Drive
- On-Board Perc S140 Software Raid Controller
- 1 x NVIDIA Quadro RTX 4000 8GB GDDR6 Graphics Card
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Dell Precision R7920 2 x 16 Core 2.80GHz Gold 6242 128GB 14.96TB SATA Storage RTX 4000
- 8 x 3.5" (LFF) Large Form Factor
- 2 x Intel Xeon Gold 6242 2.80GHz 16-Core CPU Processors
- 128GB DDR4 Memory
- 7 x Dell 3.5" 2TB 7.2K 6GBPS SATA Hard Drive
- 1 x Dell 2.5" 960GB 6GBPS SATA SSD Drive
- On-Board Perc S140 Software Raid Controller
- 1 x NVIDIA Quadro RTX 4000 8GB GDDR6 Graphics Card
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Dell Precision R7920 2 x 16 Core 2.80GHz Gold 6242 256GB 56.96TB SATA Storage RTX 4000
- 8 x 3.5" (LFF) Large Form Factor
- 2 x Intel Xeon Gold 6242 2.80GHz 16-Core CPU Processors
- 256GB DDR4 Memory
- 7 x Dell 3.5" 8TB 7.2K 6GBPS SATA Hard Drive
- 1 x Dell 2.5" 960GB 6GBPS SATA SSD Drive
- On-Board Perc S140 Software Raid Controller
- 1 x NVIDIA Quadro RTX 4000 8GB GDDR6 Graphics Card
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Dell Precision R7920 2 x 12 Core 3.30GHz Gold 6246 128GB 16.96TB SATA Storage RTX 5000
- 8 x 3.5" (LFF) Large Form Factor
- 2 x Intel Xeon Gold 6246 3.30GHz 12-Core CPU Processors
- 128GB DDR4 Memory
- 2 x Dell 3.5" 8TB 7.2K 6GBPS SATA Hard Drive
- 1 x Dell 2.5" 960GB 6GBPS SATA SSD Drive
- On-Board Perc S140 Software Raid Controller
- 1 x NVIDIA Quadro RTX 5000 16GB GDDR6 Graphics Card
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Dell Precision R7920 2 x 12 Core 3.30GHz Gold 6246 256GB 56.96TB SATA Storage RTX 5000
- 8 x 3.5" (LFF) Large Form Factor
- 2 x Intel Xeon Gold 6246 3.30GHz 12-Core CPU Processors
- 256GB DDR4 Memory
- 7 x Dell 3.5" 8TB 7.2K 6GBPS SATA Hard Drive
- 1 x Dell 2.5" 960GB 6GBPS SATA SSD Drive
- 1 x NVIDIA Quadro RTX 5000 16GB GDDR6 Graphics Card
- On-Board Perc S140 Software Raid Controller
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Dell Precision R7920 2 x 24 Core 3.00GHz Gold 6248R 256GB 16.96TB SATA Storage RTX 6000
- 8 x 3.5" (LFF) Large Form Factor
- 2 x Intel Xeon Gold 6248R 3.00GHz 24-Core CPU Processors
- 256GB DDR4 Memory
- 2 x Dell 3.5" 8TB 7.2K 6GBPS SATA Hard Drive
- 1 x Dell 2.5" 960GB 6GBPS SATA SSD Drive
- On-Board Perc S140 Software Raid Controller
- 1 x NVIDIA Quadro RTX 6000 24GB GDDR6 Graphics Card
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Dell Precision R7920 2 x 24 Core 3.00GHz Gold 6248R 512GB 56.96TB SATA Storage RTX 6000
- 8 x 3.5" (LFF) Large Form Factor
- 2 x Intel Xeon Gold 6248R 3.00GHz 24-Core CPU Processors
- 512GB DDR4 Memory
- 7 x Dell 3.5" 8TB 7.2K 6GBPS SATA Hard Drive
- 1 x Dell 2.5" 960GB 6GBPS SATA SSD Drive
- On-Board Perc S140 Software Raid Controller
- 1 x NVIDIA Quadro RTX 6000 24GB GDDR6 Graphics Card
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Dell Precision R7920 2 x 18 Core 3.10GHz Gold 6254 256GB 16.96TB SATA Storage RTX 6000
- 8 x 3.5" (LFF) Large Form Factor
- 2 x Intel Xeon Gold 6254 3.10GHz 18-Core CPU Processors
- 256GB DDR4 Memory
- 2 x Dell 3.5" 8TB 7.2K 6GBPS SATA Hard Drive
- 1 x Dell 2.5" 960GB 6GBPS SATA SSD Drive
- On-Board Perc S140 Software Raid Controller
- 1 x NVIDIA Quadro RTX 6000 24GB GDDR6 Graphics Card
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Dell Precision R7920 2 x 18 Core 3.10GHz Gold 6254 512GB 56.96TB SATA Storage RTX 6000
- 8 x 3.5" (LFF) Large Form Factor
- 2 x Intel Xeon Gold 6254 3.10GHz 18-Core CPU Processors
- 512GB DDR4 Memory
- 7 x Dell 3.5" 8TB 7.2K 6GBPS SATA Hard Drive
- 1 x Dell 2.5" 960GB 6GBPS SATA SSD Drive
- On-Board Perc S140 Software Raid Controller
- 1 x NVIDIA Quadro RTX 6000 24GB GDDR6 Graphics Card
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HP Z8 G4 Workstation 2 x 10 Core 2.40GHz Silver 4210R 32GB 2.5TB Storage RTX A4000
- 4 x 3.5" (LFF) Large Form Factor
- 2 x Intel Xeon Silver 4210R 2.40GHz 10-Core CPU Processors
- 32GB DDR4 Memory
- HP Z Turbo Drive Dual Port M.2 NVMe Adapter + 1 x 512GB M.2 NVMe SSD Drive
- 1 x NVIDIA RTX A4000 Ampere 16GB GDDR6 Graphics Card (4 x Display Ports)
- Integrated SATA Raid Controller
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HP Z8 G4 Workstation 2 x 10 Core 2.40GHz Silver 4210R 64GB 8.5TB Storage RTX A4000
- 4 x 3.5" (LFF) Large Form Factor
- 2 x Intel Xeon Silver 4210R 2.40GHz 10-Core CPU Processors
- 64GB DDR4 Memory
- HP Z Turbo Drive Dual Port M.2 NVMe Adapter + 1 x 512GB M.2 NVMe SSD Drive
- 1 x OEM 3.5" 8TB 7.2K 6GBPS SATA Hard Drive
- 1 x NVIDIA RTX A4000 Ampere 16GB GDDR6 Graphics Card (4 x Display Ports)
- Integrated SATA Raid Controller
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HP Z8 G4 Workstation 2 x 12 Core 2.40GHz Silver 4214R 32GB 2.5TB Storage RTX A4000
- 4 x 3.5" (LFF) Large Form Factor
- 2 x Intel Xeon Silver 4214R 2.40GHz 12-Core CPU Processors
- 32GB DDR4 Memory
- HP Z Turbo Drive Dual Port M.2 NVMe Adapter + 1 x 512GB M.2 NVMe SSD Drive
- 1 x OEM 3.5" 2TB 7.2K 6GBPS SATA Hard Drive
- 1 x NVIDIA RTX A4000 Ampere 16GB GDDR6 Graphics Card (4 x Display Ports)
- Integrated SATA Raid Controller
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HP Z8 G4 Workstation 2 x 12 Core 2.40GHz Silver 4214R 64GB 8.5TB Storage RTX A4000
- 4 x 3.5" (LFF) Large Form Factor
- 2 x Intel Xeon Silver 4214R 2.40GHz 12-Core CPU Processors
- 64GB DDR4 Memory
- HP Z Turbo Drive Dual Port M.2 NVMe Adapter + 1 x 512GB M.2 NVMe SSD Drive
- 1 x OEM 3.5" 8TB 7.2K 6GBPS SATA Hard Drive
- 1 x NVIDIA RTX A4000 Ampere 16GB GDDR6 Graphics Card (4 x Display Ports)
- Integrated SATA Raid Controller
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HP Z8 G4 Workstation 2 x 12 Core 3.30GHz Gold 6246 128GB 2.5TB Storage RTX A4000
- 4 x 3.5" (LFF) Large Form Factor
- 2 x Intel Xeon Gold 6246 3.30GHz 12-Core CPU Processors
- 128GB DDR4 Memory
- 1 x OEM 3.5" 2TB 7.2K 6GBPS SATA Hard Drive
- HP Z Turbo Drive Dual Port M.2 NVMe Adapter + 1 x 512GB M.2 NVMe SSD Drive
- 1 x NVIDIA RTX A4000 Ampere 16GB GDDR6 Graphics Card (4 x Display Ports)
- Integrated SATA Raid Controller
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HP Z8 G4 Workstation 2 x 12 Core 3.30GHz Gold 6246 256GB 8.5TB Storage RTX A4000
- 4 x 3.5" (LFF) Large Form Factor
- 2 x Intel Xeon Gold 6246 3.30GHz 12-Core CPU Processors
- 256GB DDR4 Memory
- 1 x OEM 3.5" 8TB 7.2K 6GBPS SATA Hard Drive
- HP Z Turbo Drive Dual Port M.2 NVMe Adapter + 1 x 512GB M.2 NVMe SSD Drive
- 1 x NVIDIA RTX A4000 Ampere 16GB GDDR6 Graphics Card (4 x Display Ports)
- Integrated SATA Raid Controller
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HP Z8 G4 Workstation 2 x 16 Core 2.80GHz Gold 6242 128GB 2.5TB Storage RTX A4000
- 4 x 3.5" (LFF) Large Form Factor
- 2 x Intel Xeon Gold 6242 2.80GHz 16-Core CPU Processors
- 128GB DDR4 Memory
- HP Z Turbo Drive Dual Port M.2 NVMe Adapter + 1 x 512GB M.2 NVMe SSD Drive
- 1 x OEM 3.5" 2TB 7.2K 6GBPS SATA Hard Drive
- 1 x NVIDIA RTX A4000 Ampere 16GB GDDR6 Graphics Card (4 x Display Ports)
- Integrated SATA Raid Controller
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HP Z8 G4 Workstation 2 x 16 Core 2.80GHz Gold 6242 256GB 8.5TB Storage RTX A4000
- 4 x 3.5" (LFF) Large Form Factor
- 2 x Intel Xeon Gold 6242 2.80GHz 16-Core CPU Processors
- 256GB DDR4 Memory
- HP Z Turbo Drive Dual Port M.2 NVMe Adapter + 1 x 512GB M.2 NVMe SSD Drive
- 1 x OEM 3.5" 8TB 7.2K 6GBPS SATA Hard Drive
- 1 x NVIDIA RTX A4000 Ampere 16GB GDDR6 Graphics Card (4 x Display Ports)
- Integrated SATA Raid Controller
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HP Z8 G4 Workstation 2 x 18 Core 2.70GHz Gold 6150 128GB 8.5TB Storage RTX A4000
- 4 x 3.5" (LFF) Large Form Factor
- 2 x Intel Xeon Gold 6150 2.70GHz 18-Core CPU Processors
- 128GB DDR4 Memory
- HP Z Turbo Drive Dual Port M.2 NVMe Adapter + 1 x 512GB M.2 NVMe SSD Drive
- 1 x OEM 3.5" 8TB 7.2K 6GBPS SATA Hard Drive
- 1 x NVIDIA RTX A4000 Ampere 16GB GDDR6 Graphics Card (4 x Display Ports)
- Integrated SATA Raid Controller