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Four green DDR4 RDIMM sticks in a row

OWC

OWC 512GB (4x128GB) DDR4 3200MHz CL22 4RX4 ECC Registered RDIMM 1.2V 288-pin Server RAM

SKU CH-J87N-49QK5

512 GB quad-kit of DDR4 3200 MHz ECC registered RDIMM modules for server workloads

  • Capacity512GB (4 x 128GB)
  • Type288-Pin DDR4 ECC RDIMM
  • SpeedDDR4 3200 (PC4 25600)
  • CAS LatencyCL22
  • Voltage1.2V
  • ECCYes

Capacity 512GB (4 x 128GB)

Voir les 4 autres configurations

Rank 4Rx4

  • Massive 512 GB capacity from four 128 GB modules
  • ECC registered design protects server data integrity
  • DDR4 3200 MHz speed matches PC4-25600 bandwidth
  • Low 1.2 V operation reduces power draw
  • JEDEC compliant build ensures broad server compatibility

Server ECC RDIMM 512GB Kit

This 512GB kit contains four 128GB DDR4 3200MHz modules built to the PC4-25600 standard with CL22 latency and 1.2V operation. Each stick is a 288-pin registered ECC RDIMM organised as 4Rx4, intended for workstation and server platforms that require error-correcting registered memory. The kit is not compatible with standard desktop computers or unbuffered memory configurations.

JEDEC ROHS Compliant Upgrade

The modules meet JEDEC specifications and are ROHS compliant, ensuring a warranty-safe upgrade path for supported systems. OWC tests every DIMM in its own lab and recommends matching capacity, speed and manufacturer across all populated slots to maintain optimal performance. The registered design and ECC function work together to protect data integrity in multi-threaded server workloads.

Verify Registered ECC Support

Before ordering, confirm that your motherboard and CPU support DDR4 registered ECC RDIMMs and can address 4Rx4 modules at the full 512GB capacity. Systems limited to unbuffered memory or lower rank counts will not boot with this kit. Check the vendor memory-qualified list for exact slot population rules and maximum supported density per channel.

Points forts

  • Massive 512 GB capacity from four 128 GB modules
  • ECC registered design protects server data integrity
  • DDR4 3200 MHz speed matches PC4-25600 bandwidth
  • Low 1.2 V operation reduces power draw
  • JEDEC compliant build ensures broad server compatibility

Caractéristiques

BrandOWC
Part Number3R2D44R4512S
Capacity512GB (4 x 128GB)
Type288-Pin DDR4 ECC RDIMM
SpeedDDR4 3200 (PC4 25600)
CAS LatencyCL22
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank4Rx4
Multi-channel KitDual Channel Kit
Heat SpreaderNo

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Questions sur cet article

Will the 4Rx4 registered ECC modules need any firmware updates or periodic reseating?

No firmware updates or scheduled reseating are required; the modules are JEDEC compliant and tested to meet OEM specifications for continuous server operation.

What is the first limit reached when the 512GB kit runs at DDR4 3200 CL22 under sustained load?

The CAS latency of 22 cycles at 3200 MT/s sets the timing boundary before bandwidth or thermal limits appear.

How much heat and power does the 1.2V 288-pin RDIMM kit produce when running all day?

Each module operates at 1.2V without a heat spreader, so power draw and heat output stay within standard DDR4 registered DIMM limits for 24/7 use.

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