Select & Buy

The World’s Most Powerful
1U Rack Workstation1

HP ZCentral 4R Workstation PC 

For the first time ever, get Z by HP performance in a high-density 1U footprint. This slim powerhouse lets you pack in more units — and power.

HP ZCentral 4R

Z4 Power.
1U Form Factor.

We've packed all the performance of our best-selling Z4 into a slim, 1U design.

Up to 18 cores Intel® Xeon® W Processor2

Ensure the highest performance and productivity for your pro-level apps and most challenging projects. Avoid system crashes in the middle of your workflow with Error Correction Code (ECC) memory that detects and corrects soft errors in the memory system on the fly.

Up to NVIDIA RTX™ A6000 GPU3

Reach peak performance with support for one ultra high-end or two mid-tier18 NVIDIA RTX™ professional graphics options.

Software certified

ISV Certified

Work with confidence knowing your desktop is certified with leading software applications to ensure peak performance even with complex projects.


Up to 256 GB


Get greater application responsiveness to tackle large workloads with quad-channel architecture providing up to 256 GB of memory.


Up to 22 TB4

Access and store massive amounts of data on the fly with three storage bays and dual M.2 slots. 

Power supply

Up to 1350W5

Choose a power supply that can keep up. With an aggregated option—combining two power supplies—or a redundant option, you'll have power to keep you up and running.5


Create Your Own Upgrade Path

Invest only in the technology you need now, knowing you can scale over time. Get the ability to expand as the compute demands of your workforce evolve, with impressive memory capacity, space for multiple GPUs6 and upgradable power supply options.

HP ZCentral

Cut Costs, Not Performance.
Centralize with Z by HP.

Maximize your compute investment by centralizing a suite of ZCentral 4Rs that can be accessed remotely with HP ZCentral software.7 Plus, software certifications for leading apps come standard,delivering professional reliability and predictable licensing fees.

Simplify Device

Choose HP Device as a Service9 for an easy way to deploy ZCentral software and hardware with users, helping you to reduce IT costs and provide robust end-point protection.10 Trust HP or an authorized channel partner to monitor security on your devices.

Discover and design

From consulting to assessment and solution design services, let us help you make the best IT decisions and investments.


Save time and increase your IT organization’s productivity when HP custom configures your devices to your specifications.


Get your users up and running quickly with delivery, staging, installation and device set-up service designed to help reduce time, risks and costs.


Increase user uptime with fast resolution of device issues, OS migration, and through consulting services to optimize your PC environment.


Choose from a wide range of global services for coverage, protection and support to improve user uptime and IT cost predictability.

Recover and Renew

Help protect your business data with our secure end of use services, and prepare for a technology refresh that supports environmental sustainability.


Rely on Your

Work with confidence knowing your desktop has undergone 360,000 hours of rigorous testing, military-standard testing,11 is certified for industry-leading software, and is built to run your heaviest workloads 24/7.

The Workstation for Your Workflow

Work without slowdown, whether you’re developing games and interactive media, animating motion graphics, or creating ads, shorts, and feature-length films with raw 4K footage.  

Third party software sold separately.

Optimized for BIM and 3D CAD design. Easily manipulate 3D shapes, render with real-time ray tracing, and run advanced simulations and visualizations — even in VR.

Third party software sold separately.

Visualize your project anytime. Move seamlessly between 3D CAD, rendering with real-time ray tracing, and advanced simulations and visualizations — even in VR. 

Third party software sold separately.

Work quickly and efficiently with advanced datasets, including videos, images, and speech. Ideal for AI, machine learning, deep learning, and cluster computing applications.  

Third party software sold separately.

That Matters

The Z by HP portfolio provides extreme performance for the most-demanding professional workflows. But the Z vision goes beyond powerful processing and graphics, cutting-edge thermal design and unrelenting reliability. 


We design our systems around our users. We understand that anywhere can be your office, and that you care about protecting our shared future. So we craft thin and light laptops with incredible battery life, mini desktops that fit your home setup and towers with tool-less access for easy expansion — and we use recycled plastics20, safer materials21 and bulk packaging. 


Globally recognized for beautiful, inclusive design, Z devices demonstrate what’s possible when we combine passion for design with uncompromising usability and engineering excellence.

Multiple Ports to
Maximize Your Productivity

  1. Headset Audio

  2. 2x USB 3.1 G1 Type-A
  3. Premium (shown) - 2x USB 3.1
    G2 Type-C®; Standard - 2x USB 3.1
    G1 Type-A
  1. 1GbE RJ-45 (AMT)
  2. 1/2.5/5/10GbE RJ-45
  3. 4x USB 3.1 G1 Type-A

Keep Cool Under Any Workload

Maintain peak processing power through your heaviest workloads with our innovative thermal technology solution.

Explore the 
ZCentral 4R

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More About Z by HP

• Security

Peace of Mind

Security is our commitment – so you can focus on driving results. Find total confidence with HP Wolf Security for Business.17