HP Z440 Workstation
Intel Xeon E5-2678v3, 12x 2,5 GHz (Turbo 3,1 GHz) 24 Threads, 30MB Cache
64 GB DDR4 RAM
NVIDIA GeForce RTX 3060, 12 GB, GDDR6 (DP, HDMI) - new
1 TB SSD SATA 2,5" - new
Microsoft Windows 11 Pro*

    Configuration/Equipment

Intel Xeon E5-2678v3, 12x 2,5 GHz (Turbo 3,1GHz)

Base clock frequency of the processor: 2,5 GHz
Max. turbo clock frequency: 3,1 GHz
Number of cores: 12
Number of threads: 24
CPU socket: LGA2011-3
Max TDP: 120W
SPECCode: SR20Z

Condition: used, professionally refurbished


64 GB DDR4 RAM



Condition: used

NVIDIA GeForce RTX 3060, 12 GB, GDDR6 (DP, HDMI) - new

CUDA compute units: 3584
Graphics memory: 12 GB, GDDR6
Ports: DisplayPort 1.4a, HDMI 2.1a
Max. resolution: 7680 * 4320 - 120Hz
Power consumption: 180W (NVIDIA)
Cooling: active

Condition: new


1 TB SSD SATA 2,5" - new


Condition: new

Microsoft Windows 11 Pro

(*)Please note during installation of Windows 11 Pro:
You will receive from us a device with Windows 11 Pro preinstalled in the latest version. This device supports Secure Boot and has a Trusted Platform Module (TPM). The CPU is not listed in the official list of "processors supported by Windows 11".
According to Microsoft, however, installation of Windows 11 is also possible on systems that are not officially supported.

If you choose to install Windows 11 on a device that does not meet the requirements, you are aware of and accept the associated risks.
(Risks see Microsoft Support: "Installing Windows 11 on devices that do not meet the minimum system requirements")


You will receive an invoice from us showing VAT. If you are a business customer outside of Germany, please provide us with your valid VAT identification number so that we can issue the invoice without VAT.

Please note that all computers and servers will only be configured specifically for you after payment has been received. Depending on order volume, this can occasionally lead to delays of approx. 1-2 working days in shipping. Please understand this.

Unless otherwise stated, used items are tested devices in perfect technical condition (1 year warranty for end consumers). Signs of use cannot be excluded on these items despite all our efforts.

For more products and configurations visit our Workstation4u shop. If you have questions or problems our technicians are available during our opening hours at any time by e-mail or by phone.

Workstation4u – Powered by Solarbayer

Workstation4u is a brand of Solarbayer GmbH and stands for high-quality workstations, business PCs, servers and IT hardware. The company Solarbayer is a manufacturer and system provider of wood-fired boilers, thermal solar systems, heat pumps and innovative storage systems.

With our own design, development and IT department we have built up extensive and well-founded know-how in the field of IT hardware over many years. We therefore have first-hand experience in the areas of CAD engineering, fluid/energy and radiation simulation as well as geodata calculation. To cope with these demanding tasks we rely on current enterprise-class IT hardware. To keep the high costs within limits, we recognized early on that refurbished and individually assembled hardware fully meets these requirements. From this position we can advise you to find and configure the ideal hardware for you.

That is why a few years ago we decided to develop a second business division for the sale of professional workstations and servers, to give you the opportunity to also purchase high-performance hardware at affordable prices. With our large storage area of over 16,000 m² and a sophisticated logistics system we ensure fast and uncomplicated delivery. We have thousands of different workstations, desktop PCs, servers and notebooks in stock to handle even larger IT projects.

By purchasing and selling refurbished IT hardware we also make a significant contribution to conserving our environmental resources. Thus the Workstation4u business area ideally complements our primary business of renewable energies.



The buyer bears the direct costs of returning the goods, according to the following tables. These return shipping costs apply if the goods are picked up from us by a forwarding company/parcel service commissioned by us. International return shipping costs are available on request.

  • Return shipping costs in Germany

    Prices in
    EUR/parcel
  • Parcel up to 30 kg with
    max. 60 x 60 x 120 cm
    8,00

  • Parcel up to 30 kg and
    > 60 x 60 x 120 cm
    14,00

  • Small pallet
    (Collection by our forwarding company)
    50,00

With our own design, development and IT department we have built up extensive and well-founded know-how in the field of IT hardware over many years. We therefore have first-hand experience in the areas of CAD engineering, fluid/energy and radiation simulation as well as geodata calculation. To cope with these demanding tasks we rely on current enterprise-class IT hardware. To keep the high costs within limits, we recognized early on that refurbished and individually assembled hardware fully meets these requirements. From this position we can advise you to find and configure the ideal hardware for you. That is why a few years ago we decided to develop a second business division for the sale of professional workstations and servers, to give you the opportunity to also purchase high-perform