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HP Z4 G4 workstation tower, matte black finish, front power and USB LEDs

HP

HP Z4 G4 Workstation Xeon W-2135 6-Core 3.70GHz 128GB DDR4 1TB HDD K4000 Windows 11 Pro

SKU CH-16RT-XP54W

Professional CAD workstation with 6-core Xeon W-2135 at 3.70GHz, 128GB DDR4, 1TB HDD, and dedicated K4000 graphics for design and engineering tasks

  • ProcessorW-2135
  • Installed RAM128 GB
  • Processor core count6
  • Operating systemWindows 11 Pro
  • Type of memoryDDR4
  • Processor speed3.7 GHz
  • 6-core Xeon W-2135 at 3.70GHz drives demanding professional workloads
  • 128GB DDR4 memory handles large projects and smooth multitasking
  • Dedicated K4000 GPU accelerates design, rendering and engineering tasks
  • 1TB storage gives quick access to applications and project files
  • Windows 11 Pro pre-installed for immediate out-of-box productivity

Professional Workstation for Design and Engineering

The HP Z4 G4 workstation is built for professional tasks such as design, content creation, rendering, engineering, and data-heavy applications. A 6-core Xeon W-2135 processor at 3.70GHz provides responsive performance for demanding workloads. 128GB of DDR4 memory supports smooth multitasking and helps handle larger professional projects and files. Windows 11 Pro is preinstalled and ready for the out-of-box setup experience.

Check Expansion Bays and Memory Type Before Ordering

This unit provides 2x 3.5" drive bays and 1x M.2 slot for storage upgrades; verify your drive form factors match these bays. The system uses DDR4 memory with a maximum capacity of 512GB; confirm any additional modules are DDR4. Ensure your workflow requirements align with the included dedicated K4000 graphics card. Stock photos may differ depending on the exact configuration shipped.

Thermals Noise and Power Draw in Normal Use

The workstation chassis includes standard front-panel LEDs for power, Ethernet, and USB activity. Professional workstations of this class use managed fan curves to balance cooling and acoustic output during rendering or engineering tasks. Power consumption scales with the 6-core Xeon processor and dedicated GPU under sustained professional loads. The unit weighs 55 and is tested to operate reliably in typical office or studio environments.

How it compares

Measured against everything we stock in Desktop Workstation Computers, at today’s prices. Recalculated every night.

Price $1,025.99
Cheaper than about 69% of the 1,534 comparable items (median $2,906.49).
Installed RAM 128 GB
Typical for this category: the median of 1,387 items is 128 GB.
Processor core count 6
Lower than about 93% of the 1,207 comparable items (median 24).

Specifications

Product
Brand nameHP
Product typeWorkstation
Processor
ProcessorW-2135
Processor core count6
Processor speed3.7 GHz
Memory
Installed RAM128 GB
Type of memoryDDR4
Maximum RAM capacity512 GB
Storage
Drive bays2x 3.5 in bays, 1x M.2
Graphics
Graphics chipDedicated
Software
Operating systemWindows 11 Pro
More details
Indicator lightsPower, Ethernet, USB

Questions about this item

Does the workstation ship with a keyboard and mouse or must they be purchased separately?

The listing mentions only the tower with its installed components — Xeon W-2135, 128GB DDR4, 1TB HDD and K4000 graphics — so a keyboard and mouse are not included and must be bought separately.

Should I choose the 128GB DDR4 configuration or upgrade toward the 512GB maximum for heavy rendering?

128GB DDR4 handles large professional projects and smooth multitasking; workloads that regularly exceed this capacity would benefit from adding modules up to the 512GB limit.

What does the 3.70GHz Xeon W-2135 speed mean for actual CAD and rendering performance?

The 6-core processor at 3.70GHz delivers responsive performance for design, rendering, engineering and other demanding professional tasks as highlighted by the manufacturer.

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