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Green rectangular memory module with gold edge connectors and black chips on both sides

OWC

OWC 16GB DDR4 2666MHz CL19 1.2V 288-Pin UDIMM HP Z2 G4 SFF

SKU CH-DH3B-RVQZ6

A 16 GB DDR4 2666 MHz CL19 UDIMM built for the HP Z2 G4 SFF workstation

  • Capacity16GB
  • Type288-Pin DDR4 Non-ECC UDIMM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.2V
  • ECCNo
  • 16 GB capacity boosts multitasking headroom
  • DDR4 2666 MHz CL19 speed matches system specs
  • 2 V low voltage reduces power draw
  • 288-pin UDIMM fits HP Z2 G4 SFF slot
  • JEDEC compliant for warranty-safe upgrade

HP Z2 G4 SFF memory upgrade

This 16 GB DDR4 module is built specifically for the HP Z2 Workstation G4 SFF. It uses a 288-pin unbuffered UDIMM form factor and runs at 1.2 V. The kit targets professionals who need a straightforward capacity increase for multitasking and larger project files.

Sustained workload behaviour

Rated at 2666 MHz with CL19 latency, the module operates within standard JEDEC DDR4 timings for stable throughput during long rendering or compilation sessions. Non-ECC unbuffered design keeps latency low for typical workstation applications. Backward compatibility with 2133 MHz and 2400 MHz platforms allows the stick to downclock automatically if the system requires it.

Pre-installation checklist

Verify that your Z2 G4 SFF has a free 288-pin DDR4 slot and that the current BIOS recognises 2666 MHz UDIMMs. The module is a 2Rx8 dual-rank part, so confirm the motherboard supports this rank configuration in the intended slot population. No heat spreader is fitted, so ensure case airflow is adequate for bare PCB operation.

Helstu kostir

  • 16 GB capacity boosts multitasking headroom
  • DDR4 2666 MHz CL19 speed matches system specs
  • 2 V low voltage reduces power draw
  • 288-pin UDIMM fits HP Z2 G4 SFF slot
  • JEDEC compliant for warranty-safe upgrade

Tæknilýsing

BrandOWC
Part Number2U6D42R816GB
Capacity16GB
Type288-Pin DDR4 Non-ECC UDIMM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.2V
ECCNo
Buffered/RegisteredUnbuffered
Rank2Rx8
Heat SpreaderNo
Compatible SystemHP Z2 Workstation G4 SFF

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How much power does the 1.2V DDR4 2666MHz module draw during continuous operation?

The module operates at the standard DDR4 voltage of 1.2V with a CL19 latency. Without a heat spreader, it relies on case airflow to stay cool during all-day workloads in the HP Z2 G4 SFF.

Does the HP Z2 G4 SFF need a specific BIOS version or matching DIMMs to accept this 288-pin UDIMM?

The 2Rx8 unbuffered DIMM is designed to meet JEDEC specifications for the HP Z2 Workstation G4 SFF. It installs directly into the motherboard's 288-pin slots without requiring additional components.

Will this PC4-21300 stick run stably alongside existing 2133MHz or 2400MHz modules?

Yes, the module is backward compatible with 2133MHz and 2400MHz speeds. When mixed, all DIMMs will run at the lowest common frequency and the system will operate in dual-channel mode if populated correctly.

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