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Green circuit board with black memory chips, gold edge connectors, no heat spreader

OWC

OWC 16GB DDR5 5200 CL42 1Rx4 288-pin 1.1V ECC Registered RDIMM server RAM

SKU CH-1F15-JXEJ9

Adds 16 GB of DDR5 ECC registered memory at 5200 MT/s for servers and workstations

  • Capacity16GB
  • Type288-Pin DDR5 ECC RDIMM
  • SpeedDDR5 5200 (PC5 41600)
  • CAS LatencyCL42
  • Voltage1.1V
  • ECCYes

Capacity 16GB

  • ECC registered design detects and corrects data errors for server reliability
  • DDR5 5200 speed delivers high bandwidth for demanding workloads
  • 16 GB capacity expands memory for virtualization and large datasets
  • 1 V operation reduces power draw in dense configurations
  • JEDEC and RoHS compliant ensuring broad platform compatibility

ECC Registered DDR5 for Servers

This module is a 16 GB DDR5 RDIMM with on-die ECC and registered buffering. It is built for workstations, servers and NAS systems that require registered memory. It will not work in standard desktop computers that accept only unbuffered modules. Builders who need unbuffered or load-reduced DIMMs cannot use this part.

DDR5 5200 Speed and Voltage Limits

The DIMM runs at 5200 MT/s with a CAS latency of CL42 at 1.1 V. The JEDEC DDR5 standard defines this data rate as the baseline for registered server memory. Systems that do not support DDR5 5200 registered DIMMs will not post with this module installed. Buyers whose platforms cap memory speed below 5200 MT/s or require a different voltage cannot use this module.

Single Rank 1Rx4 Organisation

The module uses a single 1Rx4 rank configuration across its 288 pins. This rank structure determines how the memory controller addresses the chips and must match the platform's qualified vendor list. Servers that require dual-rank or x8 organisation will not accept this DIMM. Verify the exact rank requirement before ordering.

Highlights

  • ECC registered design detects and corrects data errors for server reliability
  • DDR5 5200 speed delivers high bandwidth for demanding workloads
  • 16 GB capacity expands memory for virtualization and large datasets
  • 1 V operation reduces power draw in dense configurations
  • JEDEC and RoHS compliant ensuring broad platform compatibility

Specifications

BrandOWC
Part Number5R2D51R416GB
Capacity16GB
Type288-Pin DDR5 ECC RDIMM
SpeedDDR5 5200 (PC5 41600)
CAS LatencyCL42
Voltage1.1V
ECCYes
Buffered/RegisteredRegistered
Rank1Rx4
Heat SpreaderNo

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Questions about this item

Should I pick the 16 GB module or a larger kit?

This listing is for a single 16 GB DDR5 5200 CL42 RDIMM; add more identical modules to reach the capacity your server board supports.

What does the 5200 MT/s rating deliver in a live server?

The module runs at 5200 MT/s (PC5-41600) with CL42 latency, providing JEDEC-standard bandwidth for registered DDR5 platforms.

How does the 288-pin ECC registered interface limit use?

The 288-pin registered DDR5 design with on-die ECC only works in workstation or server boards that accept RDIMMs; it will not fit standard desktop slots.

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