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Four green DDR4 ECC registered DIMMs, 288-pin, no heat spreader

OWC

OWC 128GB (4x32GB) DDR4 2933MHz PC4-23400 CL21 2Rx4 ECC Registered RDIMM 1.2V 288-pin Server RAM

SKU CH-Q260-GMKPJ

128 GB DDR4-2933 ECC registered quad-kit for servers, workstations and NAS with CL21 latency and 1.2 V operation

  • Capacity128GB (4 x 32GB)
  • Type288-Pin DDR4 ECC RDIMM
  • SpeedDDR4 2933 (PC4 23400)
  • CAS LatencyCL21
  • Voltage1.2V
  • ECCYes

Capacity 128GB (4 x 32GB)

Show 4 more configurations

Rank 2Rx4

  • ECC registered design prevents data corruption in servers
  • 128GB total capacity across four 32GB modules handles heavy workloads
  • DDR4 2933MHz speed with CL21 latency boosts throughput
  • 2V operation reduces power draw and heat output
  • Backward compatible with 2133MHz, 2400MHz and 2666MHz systems

Server memory kit for ECC workloads

This OWC kit delivers 128GB across four 32GB DDR4 2933MHz registered DIMMs. It is built for servers, workstations and NAS systems that require error-correcting memory. The modules run at CL21 latency and 1.2V. They are not compatible with standard desktop computers.

Verify registered DIMM support before ordering

Your motherboard must accept 288-pin DDR4 ECC registered RDIMMs and support a 2Rx4 rank configuration. Mixing these modules with unbuffered memory will prevent the system from booting. The kit is backward compatible with 2133MHz, 2400MHz and 2666MHz bus speeds if your platform requires a lower frequency.

JEDEC compliant build with no heat spreaders

Each module follows JEDEC and RoHS standards for warranty safe upgrades. The bare green PCB design fits tight server slots without clearance issues. Gold edge connectors on the 288-pin interface ensure reliable contact during repeated maintenance cycles.

Highlights

  • ECC registered design prevents data corruption in servers
  • 128GB total capacity across four 32GB modules handles heavy workloads
  • DDR4 2933MHz speed with CL21 latency boosts throughput
  • 2V operation reduces power draw and heat output
  • Backward compatible with 2133MHz, 2400MHz and 2666MHz systems

Specifications

BrandOWC
Part Number2R9D42R4128S
Capacity128GB (4 x 32GB)
Type288-Pin DDR4 ECC RDIMM
SpeedDDR4 2933 (PC4 23400)
CAS LatencyCL21
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Multi-channel KitDual Channel Kit
Heat SpreaderNo

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

What comes in the box and do I need to buy anything else to install these modules?

The kit includes four 32GB DDR4 2933MHz ECC Registered RDIMM modules for a total of 128GB; no extra parts are required for installation into compatible 288-pin server slots.

How do I choose between the available capacities or speeds for this server memory?

This specific kit provides 128GB (4x32GB) at 2933MHz CL21; other capacities or speeds are separate products not covered by this listing.

What does the 2933MHz rating mean for actual performance in my server or workstation?

The modules run at 2933MHz with CL21 latency and 1.2V; they are backward compatible with 2666MHz, 2400MHz and 2133MHz systems, operating at the highest speed the platform supports.

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