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Green rectangular DDR5 RDIMM module with black chips and gold contacts, no heat spreader

OWC

OWC 64GB DDR5 5600 CL46 2Rx4 1.1V ECC RDIMM SuperBlade

SKU CH-JBN8-V884X

A 64GB DDR5 5600 ECC registered RDIMM with CL46 latency and 1.1V operation, validated for Supermicro SuperBlade SBI-621E servers

  • Total capacity64 GB
  • Rated speedDDR5 5600 (PC5 44800)
  • CAS latency46
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • Memory rank2Rx4

Capacity 64GB

  • 64GB capacity expands server memory headroom
  • DDR5 5600 speed delivers high data throughput
  • CL46 latency supports responsive workloads
  • ECC registered design protects data integrity
  • 1V operation reduces power consumption

Targeted Server Upgrade

This 64GB DDR5 5600 module is built for Supermicro SuperBlade SBI-621E-1T3N and SBI-621E-5T3N systems. It delivers ECC registered performance for workstations, servers and network switches that require registered memory. The single DIMM adds capacity without mixing buffered and unbuffered types.

Registered 288-Pin Build

The module uses a 288-pin RDIMM form factor with 2Rx4 organisation and runs at 1.1V. No heat spreader is fitted, so airflow in dense blade chassis passes directly over the components. JEDEC and RoHS compliance ensures the electrical and mechanical interface matches the SuperBlade slots exactly.

Verify Blade Compatibility

Confirm the target chassis is a SuperBlade SBI-621E-1T3N or SBI-621E-5T3N before ordering. This memory will not work in standard desktop platforms or systems that require unbuffered or load-reduced DIMMs. Check the motherboard documentation for maximum supported capacity per slot and population rules.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $1,752.99
Pricier than about 66% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB
Higher than about 60% of the 20,941 comparable items (median 32 GB).
CAS latency 46
Higher than about 90% of the 483 comparable items (median 22).
Price per GB $27.39 per GB
Pricier than about 76% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number5R6D52R464 GB
Total capacity64 GB
Product type288-Pin DDR5 ECC RDIMM
Performance
Rated speedDDR5 5600 (PC5 44800)
Memory
CAS latency46
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro SuperBlade SBI-621E-1T3N
Supermicro SuperBlade SBI-621E-5T3N

Other versions of this model

5 more in the same range

Questions about this item

What DDR5 speed and CAS latency does this 64GB module run at?

It operates at DDR5 5600 (PC5-44800) with a CAS latency of 46.

Which physical slot and pin count does this ECC RDIMM require?

It fits a standard 288-pin DDR5 RDIMM socket in the Supermicro SuperBlade SBI-621E-1T3N or SBI-621E-5T3N chassis.

How is this registered ECC DIMM installed, and what common mistake should I avoid?

Power down the blade, open the DIMM ejectors, align the notch, press firmly until both latches click, then verify the module is seated evenly; never mix this registered ECC module with unbuffered or load-reduced memory.

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