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Eight green 288-pin DDR5 RDIMM modules, bare circuit boards with black chips, no heat spreaders

OWC

OWC 256GB (8x32GB) DDR5 5200 CL42 2Rx8 ECC Registered RDIMM Server RAM

SKU CH-QCR2-5D419

Eight 32 GB DDR5-5200 ECC registered RDIMMs totalling 256 GB for workstations and servers

  • Capacity256GB (8 x 32GB)
  • Type288-Pin DDR5 ECC RDIMM
  • SpeedDDR5 5200 (PC5 41600)
  • CAS LatencyCL42
  • Voltage1.1V
  • ECCYes

Capacity 256GB (8 x 32GB)

Show 4 more configurations

Rank 2Rx8

  • 256 GB total capacity from eight 32 GB modules
  • DDR5 5200 speed with CL42 latency for server workloads
  • ECC registered design detects and corrects memory errors
  • JEDEC-standard 1.1 V voltage reduces power draw
  • 288-pin RDIMM form factor fits compatible workstation and server slots

Server-grade capacity

This 256 GB kit delivers eight 32 GB DDR5 registered DIMMs for workstations and servers that require error-correcting memory. The modules operate at 5200 MT/s with CL42 latency at 1.1 V. They are built to JEDEC and RoHS standards for warranty-safe upgrades.

Registered ECC integration

Each 288-pin RDIMM uses a 2Rx8 organisation and registered buffering to reduce electrical load on the memory controller. The kit is designed for dual-channel platforms that support DDR5 registered ECC memory and cannot be mixed with unbuffered or load-reduced modules. No heat spreader is fitted, so airflow in the chassis handles cooling.

Sustained data integrity

ECC circuitry corrects single-bit errors and detects multi-bit errors continuously during long compute runs. Registered buffering maintains signal quality across all eight modules under sustained bandwidth demand. The 1.1 V operating voltage keeps power draw predictable for dense server configurations.

Highlights

  • 256 GB total capacity from eight 32 GB modules
  • DDR5 5200 speed with CL42 latency for server workloads
  • ECC registered design detects and corrects memory errors
  • JEDEC-standard 1.1 V voltage reduces power draw
  • 288-pin RDIMM form factor fits compatible workstation and server slots

Specifications

BrandOWC
Part Number5R2D52R8256K
Capacity256GB (8 x 32GB)
Type288-Pin DDR5 ECC RDIMM
SpeedDDR5 5200 (PC5 41600)
CAS LatencyCL42
Voltage1.1V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx8
Multi-channel KitDual Channel Kit
Heat SpreaderNo

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Questions about this item

What is the maximum sustained data rate this 256 GB DDR5 kit can deliver?

The kit operates at DDR5 5200 (PC5-41600), giving a peak transfer rate of 41600 MT/s per module.

How much heat and power should I expect from eight registered DIMMs running continuously?

Each module runs at 1.1 V with no heat spreader; registered ECC DIMMs typically draw a few watts per stick, so plan for modest airflow across all eight slots.

Which motherboard features are required to use this 8 x 32 GB registered ECC kit?

You need a workstation or server board with 288-pin DDR5 slots that support registered ECC memory and can populate eight DIMM sockets.

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