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Black mid-tower desktop workstation in a plain chassis

HP

HP Z2 G4 Mid-Tower Workstation i9-9900K 64GB 1TB NVMe Windows 11 Pro

SKU CH-56XC-7Z6KR

A mid-tower workstation with an 8-core i9-9900K, 64GB DDR4 memory and a 1TB NVMe SSD for demanding professional workloads

  • Screen sizeNo Screen
  • ProcessorIntel Core i9
  • RAM capacity64 GB DDR4
  • SSD storage1 TB PCIe
  • GraphicsIntel HD Graphics 630
  • CPU modelIntel Core i9-9900K
  • 8-core i9-9900K up to 5.0 GHz turbo handles heavy workloads
  • 64GB DDR4 2666 memory supports large datasets and multitasking
  • 1TB NVMe SSD delivers fast boot and application load times
  • Windows 11 Pro 64-bit provides modern security and management features
  • 500W 90% efficient power supply ensures stable operation under load

HP Z2 G4 Mid-Tower Workstation

This HP Z2 G4 mid-tower workstation ships new with Windows 11 Pro installed. An Intel Core i9-9900K 8-core processor runs at 3.6 GHz and reaches 5.0 GHz turbo. The system includes 64 GB of DDR4 2666 memory and a 1 TB NVMe solid-state drive.

Suited to demanding business workloads

The eight-core CPU and large memory capacity handle multi-threaded applications, data analysis and virtual machines. Integrated Intel HD Graphics 630 supports dual DisplayPort monitors without a discrete card. Buyers who need dedicated GPU compute or more than 128 GB of memory should look at other configurations.

Build-ready with 500 W efficient supply

The 500 W 90 percent efficient power supply drives the processor, memory and NVMe drive while leaving headroom for a future graphics upgrade. Four occupied DIMM slots mean any memory expansion requires replacing modules. Two DisplayPort outputs and Gigabit Ethernet are available immediately.

How it compares

Measured against everything we stock in Tower & Compact Desktop PCs, at today’s prices. Recalculated every night.

Price $938.99
Pricier than about 74% of the 14,711 comparable items (median $494.99).
RAM capacity 64 GB DDR4
Higher than about 90% of the 13,125 comparable items (median 16 GB).
SSD storage 1 TB PCIe
Higher than about 60% of the 11,342 comparable items (median 512 GB).

Specifications

Product
Product lineZ2
Model nameG4
Product typeBusiness Desktops & Workstations
Recommended useBusiness
Product colorBlack
Processor
ProcessorIntel Core i9
CPU modelIntel Core i9-9900K
CPU socketLGA 1151
Memory
RAM capacity64 GB DDR4
RAM type and speedDDR4 2666
Max supported RAM128 GB
Storage
SSD storage1 TB PCIe
Hard driveNo
Display
Screen sizeNo Screen
Graphics
GraphicsIntel HD Graphics 630
Size & build
Form factorMid Tower
In the box
Included monitorNot included
Software
Operating systemWindows 11 Pro

Questions about this item

Does the 500 W power supply have the 8-pin EPS connector my i9-9900K needs?

The factory 500 W unit is built for this workstation and includes the connectors required by the LGA 1151 i9-9900K and the installed components.

Can I keep my DDR4 2666 memory when I add more modules up to the 128 GB limit?

Yes, the four slots already hold 4 × 16 GB DDR4 2666 unbuffered DIMMs; additional DDR4 2666 modules will run at the same speed.

How do I confirm the 1 TB NVMe SSD is the active boot drive after setup?

Open Settings → System → Storage and verify the 1 TB PCIe NVMe device shows Windows 11 Pro installed and marked as the boot volume.

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