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Green 288-pin DDR5 RDIMM module with black chips, no heat spreader

OWC

OWC 5R6D54R4128G 128GB DDR5 5600 ECC RDIMM 4Rx4 1.1V SuperBlade memory upgrade

SKU CH-VE28-B3NPY

A 128GB DDR5 5600 ECC registered RDIMM for Supermicro SuperBlade SBI-611E and SBI-621E servers

  • Total capacity128 GB
  • Rated speedDDR5 5600 (PC5 44800)
  • CAS latency46
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • Memory rank4Rx4

Capacity 128GB

  • 128 GB capacity expands server memory headroom
  • DDR5 5600 speed delivers high data throughput
  • ECC registered design protects data integrity in critical workloads
  • 1 V operation reduces power draw per module
  • Validated for Supermicro SuperBlade SBI-611E and SBI-621E series

Purpose-built server upgrade

This OWC DDR5 5600 ECC registered DIMM provides a single 128GB module for Supermicro SuperBlade systems. It targets administrators expanding memory in SBI-611E-1T2N, SBI-611E-5T2N, SBI-621E-1C3N, SBI-621E-1NE34 or SBI-621E-1NE38 blade servers. The 4Rx4 organisation and 1.1V operation match the platform's registered memory requirement.

Verify blade memory rules

Confirm the SuperBlade chassis accepts 288-pin DDR5 RDIMMs at PC5-44800 speed with CL46 latency. Registered ECC modules cannot be mixed with unbuffered or load-reduced DIMMs in the same system. Check the blade's qualified-vendor list and maximum supported capacity per slot before ordering.

Thermals and power profile

The module runs at the standard 1.1V DDR5 voltage without a heat spreader, relying on the blade's directed airflow for cooling. Registered operation adds minimal latency overhead while the ECC circuitry corrects single-bit errors transparently. Power draw scales with the 5600 MT/s data rate and 4-rank density during sustained workloads.

How it compares

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

Price $3,917.99
Pricier than about 76% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB
Higher than about 70% 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 $30.61 per GB
Pricier than about 88% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number5R6D54R4128G
Total capacity128 GB
Product type288-Pin DDR5 ECC RDIMM
Performance
Rated speedDDR5 5600 (PC5 44800)
Memory
CAS latency46
ECC supportYes
Buffer typeRegistered
Memory rank4Rx4
Heat spreaderNo
Power
Rated voltage1.1 V

Other versions of this model

5 more in the same range

Questions about this item

What comes in the box with the OWC 5R6D54R4128G 128GB DDR5 5600 ECC RDIMM?

The box contains one 128GB DDR5 5600 PC5-44800 CL46 4Rx4 288-pin 1.1V ECC Registered RDIMM module. No cables, brackets or additional hardware are included.

Which capacity or version should I choose for a SuperBlade SBI-611E-1T2N or SBI-621E-1NE38?

This part number is a single 128GB module. Select it when your server requires a 128GB DDR5 5600 ECC Registered DIMM; other capacities are separate part numbers.

What does the 5600 CL46 rating mean once the module is installed in a SuperBlade server?

The module runs at DDR5 5600 MT/s with a CAS latency of 46 cycles at 1.1V, delivering JEDEC-standard bandwidth and error-correction for the SuperBlade platform.

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