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Four green DDR4 RDIMM modules with gold contacts, no heat spreaders

OWC

OWC 256GB (4x64GB) DDR4 2933 PC4-23400 CL21 2Rx4 288-pin 1.2V ECC Registered RDIMM Kit HP Workstation Z6 G4

SKU CH-TMDB-MSYE6

ECC registered DDR4 kit adds 256 GB across four 64 GB modules at 2933 MHz CL21 for HP Z6 G4 workstations

  • Capacity256GB (4 x 64GB)
  • Type288-Pin DDR4 ECC RDIMM
  • SpeedDDR4 2933 (PC4 23400)
  • CAS LatencyCL21
  • Voltage1.2V
  • ECCYes

Capacity 256GB (4 x 64GB)

  • 256 GB total capacity from four 64 GB modules
  • DDR4 2933 speed with PC4-23400 bandwidth rating
  • ECC registered design detects and corrects memory errors
  • 2 V operation reduces power draw and heat
  • Backward compatible with 2133, 2400 and 2666 MHz systems

System-Specific ECC RDIMM Kit

This OWC kit provides 256 GB of DDR4 memory in four 64 GB registered DIMMs. It is built for the HP Workstation Z6 G4 and carries ECC error correction for data integrity. The modules run at 2933 MHz with a CL21 latency at 1.2 V.

Registered ECC With 2Rx4 Organisation

The decisive specification is the registered ECC design with a 2Rx4 rank structure. This memory will not work in standard desktop computers and cannot be mixed with unbuffered or load-reduced DIMMs. Backward compatibility covers 2133, 2400 and 2666 MHz speeds.

For Z6 G4 Workstation Upgrades

Suits administrators expanding an HP Z6 G4 workstation or server that requires registered ECC RDIMMs. Not for builders needing unbuffered desktop memory, laptops using SO-DIMMs, or systems limited to lower maximum capacities.

Highlights

  • 256 GB total capacity from four 64 GB modules
  • DDR4 2933 speed with PC4-23400 bandwidth rating
  • ECC registered design detects and corrects memory errors
  • 2 V operation reduces power draw and heat
  • Backward compatible with 2133, 2400 and 2666 MHz systems

Specifications

BrandOWC
Part Number2R9D42R4256S
Capacity256GB (4 x 64GB)
Type288-Pin DDR4 ECC RDIMM
SpeedDDR4 2933 (PC4 23400)
CAS LatencyCL21
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Heat SpreaderNo
Compatible SystemHP Workstation Z6 G4

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Questions about this item

What does the 2933 MHz speed mean for my HP Z6 G4?

The kit runs at DDR4 2933 (PC4-23400) with CL21 timing; the workstation's memory controller will set the final operating speed based on CPU support and populated slots.

How does the PC4-23400 rating and ECC registered design affect compatibility?

PC4-23400 is the JEDEC standard name for DDR4 2933; the modules are ECC registered (RDIMM) so they only work in platforms that support registered ECC memory and cannot be mixed with unbuffered or load-reduced DIMMs.

Will these 288-pin RDIMMs fit the Z6 G4 memory slots?

Yes, each module is a standard 288-pin DDR4 RDIMM; the kit includes four 64 GB sticks for the Z6 G4's DIMM slots.

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