We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
HP Z4 G4 tower workstation, dark chassis, front panel with optical drive bay and ports

HP

HP Z4 G4 Workstation Xeon W-2135 3.7GHz 64GB 500GB NVMe Quadro P1000

SKU CH-4K4Q-D5SV1

Tower workstation with a 6-core Xeon at 3.7 GHz, 64 GB DDR4 ECC, 500 GB NVMe and a Quadro P1000 for CAD and rendering

  • TypeTower
  • Redundant Hot-swap PowerNo
  • CPU TypeIntel Xeon
  • MAX Processors1
  • Chipset465W
  • Installed Memory Size64GB

Installed Memory Size 64GB

SSD (Installed) 500GB

  • 250GB
  • 500GB
  • 1TB

Struck-through versions exist but are not stocked here.

HDD None

  • 6-core Xeon W-2135 at 3.7GHz powers demanding professional workloads
  • 64GB DDR4 ECC memory handles large projects and multitasking smoothly
  • 500GB NVMe storage gives fast access to applications and files
  • Quadro P1000 with 4GB GDDR5 drives CAD, rendering and multi-display setups
  • Four-channel 2666MHz architecture with 8 DIMM slots supports up to 512GB total memory

Professional workstation for design and engineering

The HP Z4 G4 is a new tower workstation built for professional design, content creation, rendering and engineering workloads. It runs a single Intel Xeon W-2135 six-core processor at 3.7GHz with 12 threads. The 64GB DDR4 ECC memory fills the maximum supported capacity across four channels at 2666MHz. A 500GB NVMe SSD and an NVIDIA Quadro P1000 with 4GB GDDR5 complete the core specification.

Standard tower access with memory at its limit

The tower chassis opens for component access and includes two internal 3.5-inch bays with acoustic dampening rails, two external 5.25-inch bays and a dedicated 9.5mm slim optical bay holding a DVD+/-RW drive. Installing additional storage in the 3.5-inch bays uses the onboard SATA controller with RAID 0, 1, 5 or 10 support. The 64GB memory configuration already reaches the 64GB maximum listed in the primary specifications, so no further memory upgrades are possible without replacing modules.

500GB NVMe and Quadro P1000 headroom

The 500GB NVMe drive provides quick access to applications and active project files, with capacity suited to everyday professional work; larger datasets will require the additional 3.5-inch SATA bays or expansion cards. The Quadro P1000 drives up to four displays via Mini DisplayPort 1.4 and handles CAD, content creation and multi-monitor setups; more intensive GPU rendering or compute tasks will exceed the 4GB GDDR5 frame buffer. The 465W chipset and single-processor design set the overall power envelope for expansion.

Highlights

  • 6-core Xeon W-2135 at 3.7GHz powers demanding professional workloads
  • 64GB DDR4 ECC memory handles large projects and multitasking smoothly
  • 500GB NVMe storage gives fast access to applications and files
  • Quadro P1000 with 4GB GDDR5 drives CAD, rendering and multi-display setups
  • Four-channel 2666MHz architecture with 8 DIMM slots supports up to 512GB total memory

Specifications

BrandHP
SeriesZ Series
ModelZ4 G4
TypeTower
Redundant Hot-swap PowerNo
CPU TypeIntel Xeon
MAX Processors1
Chipset465W
Installed Memory Size64GB
Memory TypeDDR4
Max Memory Capacity64GB
Memory FeaturesFour channel memory up to 2666MHz DDR4 ECC memory, 2 DIMMs per Channel, 8 DIMM Slots.
Number of Memory Slots8
SSD (Installed)500GB
Raid LevelRAID 0/1/5/10
Max HDD Capacity1
Media DrivesDVD +/- RW
GPU TypeNVIDIA Quadro P1000
Video Memory4GB
LAN Ports2 x Ports
Expansion SlotsSlot 1: PCI Express Gen3 x16 (from CPU), Slot 2: PCI Express Gen3 x4 (from PCH) with open-ended connector*, Slot 3: PCI Express Gen3 x16 (from CPU), Slot 4: PCI Express Gen3 x4 (from PCH) with open-ended connector*, Slot 5: PCI Express Gen3 x8 (from CPU) with open-ended
connector*, , and M.2 Slot 1: M.2 PCIe Gen 3 x4 (from CPU) up to 80mm storage devices
Operating SystemWindows 11 Pro
Weight45.0000LBS

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

How do I verify the Xeon W-2135 3.7GHz and Quadro P1000 are running correctly after setup?

Open Task Manager to confirm six cores and twelve threads at 3.7GHz. In Device Manager check that the Quadro P1000 shows 4GB GDDR5 and four Mini DP 1.4 ports. Run the HP PC Hardware Diagnostics UEFI tool for a full component stress test.

What ships in the box and what must I buy separately?

The tower arrives with the Xeon W-2135, 64GB DDR4 ECC, 500GB NVMe, Quadro P1000, DVD+/-RW, Windows 11 and power cord. No keyboard, mouse or display cables are included; buy Mini DP to DP or HDMI adapters for monitors.

Which memory capacity should I choose for this Z4 G4?

The board supports up to 512GB across eight DDR4 ECC slots at 2666MHz. The unit already has 64GB installed; add matched DIMMs in sets of four per channel if your workloads need more than 64GB.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.