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Green circuit board with black memory chips, gold edge connector, no heat spreader

OWC

OWC 32GB DDR4 2666MHz CL19 1.2V 288-Pin UDIMM HP Z1 G5 G4 Tower

SKU CH-WGG0-XGYJ5

32GB DDR4 2666MHz CL19 UDIMM module for HP Z1 G5, G4 Core X and G4 Tower workstations

  • Total capacity32 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Memory rank2Rx8
  • 32GB capacity lets you run more apps and larger files simultaneously
  • 2666MHz DDR4 speed with CL19 latency delivers responsive system performance
  • 2V low-voltage operation reduces power draw and heat output
  • 288-pin UDIMM form factor fits HP Z1 G5, G4 Core X and G4 Tower workstations
  • JEDEC and RoHS compliant for a warranty-safe upgrade backed by lifetime warranty

32GB DDR4 module for HP Z1 workstations

This 32GB DDR4 2666MHz CL19 UDIMM is built for HP Z1 Workstation G5, G4 (Core X) and G4 Tower systems. It targets professionals who need more memory headroom for multitasking and larger datasets in those specific workstations.

32GB capacity with 2666MHz speed and CL19 timing

The single module provides 32GB of non-ECC unbuffered memory at 1.2V. It runs at PC4-21300 (2666MHz) with CAS latency 19 and is backward compatible with 2133MHz and 2400MHz systems. The 2Rx8 rank organisation suits the supported platforms.

288-pin UDIMM form factor for direct slot

The module uses the standard 288-pin DDR4 UDIMM layout with no heat spreader, fitting the workstation's DIMM slots without extra clearance. It requires a platform that accepts non-ECC unbuffered DDR4 at 1.2V and leaves other slots free for further expansion.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $187.99
Cheaper than about 59% of the 21,161 comparable items (median $397.99).
Total capacity 32 GB
Typical for this category: the median of 20,941 items is 32 GB.
Price per GB $5.87 per GB
Cheaper than about 67% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number2U6D42R832 GB
Total capacity32 GB
Product type288-Pin DDR4 Non-ECC UDIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Memory
CAS latencyCL19
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsHP Z1 Workstation G5
HP Z1 Workstation G4 (Core X)
HP Z1 Workstation G4 Tower

Other versions of this model

5 more in the same range

Questions about this item

Will this 2666MHz DDR4 UDIMM run with my existing 2400MHz modules in the HP Z1 G4 Tower?

Yes, the module is backward compatible with 2133MHz and 2400MHz speeds so it will operate at the lower frequency when mixed with slower DIMMs.

How can I verify the 32GB CL19 kit is recognised at the correct speed after installation?

Enter the system BIOS or use a tool such as CPU-Z to confirm the memory reports 32GB capacity, DDR4-2666 frequency and CL19 timings.

Does the 288-pin UDIMM come alone or with any extra parts I need to buy?

The package contains only the single 32GB DDR4 UDIMM; no heat spreader, cables or additional hardware are included.

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