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Green bare circuit board DDR5 RDIMM with black memory chips, 288 gold pins

OWC

OWC 64GB DDR5 5600 ECC RDIMM 2Rx4 1.1V CL46 288-pin memory upgrade

SKU CH-NKVP-04AA2

64 GB DDR5 5600 ECC registered DIMM for Supermicro SuperServer 421 series

  • Capacity64GB
  • Type288-Pin DDR5 ECC RDIMM
  • SpeedDDR5 5600 (PC5 44800)
  • CAS Latency46
  • Voltage1.1V
  • ECCYes

Capacity 64GB

  • 64 GB capacity for high-density server workloads
  • DDR5 5600 speed with CL46 latency for fast data access
  • ECC registered design protects data integrity in critical applications
  • 1 V operation reduces power draw per module
  • Validated for Supermicro SYS-421GE and SYS-421GU series

Server ECC RDIMM upgrade

This OWC module is a single 64GB DDR5 5600 ECC Registered DIMM built for Supermicro SuperServer SYS-421GE-TNHR2-LCC, SYS-421GE-TNRT, SYS-421GE-TNRT3 and SYS-421GU-TNXR systems. It operates at 1.1V with a CAS latency of 46 and a 2Rx4 rank structure. The 288-pin form factor fits the DDR5 slots in these qualified workstations and servers.

JEDEC compliance and rank rules

The module meets JEDEC and RoHS standards and carries a limited lifetime warranty with free technical support. Because it is ECC Registered, it cannot be mixed with unbuffered or load-reduced memory in the same platform. Installing it alongside incompatible DIMM types will prevent the system from posting or cause data integrity errors.

Platform verification before purchase

Confirm the exact SuperServer model number matches one of the four listed systems before ordering. Check the motherboard manual for maximum supported capacity per slot and total population rules for registered DIMMs. Ensure all installed modules share the same registered ECC specification to avoid configuration conflicts.

Points forts

  • 64 GB capacity for high-density server workloads
  • DDR5 5600 speed with CL46 latency for fast data access
  • ECC registered design protects data integrity in critical applications
  • 1 V operation reduces power draw per module
  • Validated for Supermicro SYS-421GE and SYS-421GU series

Caractéristiques

BrandOWC
Part Number5R6D52R464GB
Capacity64GB
Type288-Pin DDR5 ECC RDIMM
SpeedDDR5 5600 (PC5 44800)
CAS Latency46
Voltage1.1V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Heat SpreaderNo
Compatible SystemSupermicro SuperServer SYS-421GE-TNHR2-LCC
Supermicro SuperServer SYS-421GE-TNRT
Supermicro SuperServer SYS-421GE-TNRT3
Supermicro SuperServer SYS-421GU-TNXR

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Questions sur cet article

Will the 64GB DDR5 5600 ECC RDIMM need any maintenance or replacement over its service life?

The module has no heat spreader and no moving parts, so no routine maintenance is required. It is covered by a limited lifetime warranty if a defect appears.

What limit appears first when the 1.1V registered DIMM runs continuously in a Supermicro SuperServer?

The memory controller’s maximum supported capacity per channel is reached before the module’s own thermal or power ceiling.

How much heat and power does the 2Rx4 288-pin module produce during all-day operation?

At 1.1V and DDR5 5600 speed the module draws low power and runs cool; no active cooling is needed beyond normal server airflow.

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