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Four green DDR3L ECC registered DIMMs 240-pin 1.35V

OWC

OWC 64GB (4x16GB) DDR3L 1600 CL11 ECC Registered RDIMM 1R6T32R4064S

SKU CH-WMBW-R1AR9

64 GB DDR3L ECC registered kit of four 16 GB modules at 1600 MHz CL11 for compatible Supermicro SuperWorkstation systems

  • Total capacity64 GB (4 × 16 GB)
  • Rated speedDDR3L 1600 (PC3L 12800)
  • CAS latencyCL11
  • Rated voltage1.35 V
  • Buffer typeRegistered
  • Memory rank2Rx4

Capacity 64GB (4 x 16GB)

  • ECC Registered design protects data integrity in servers
  • DDR3L 1600 CL11 at 1.35V runs cool and stable
  • 64GB kit (4×16GB) fills four slots for maximum capacity
  • 2Rx4 240-pin RDIMM matches Supermicro SuperWorkstation 7037A, 7047AX, 7047GR
  • JEDEC and RoHS compliant modules tested for reliable upgrades

Capacity and Compatibility

This kit delivers 64GB of DDR3L memory across four 16GB registered DIMMs built for Supermicro SuperWorkstation 7037A, 7047AX and 7047GR systems. The modules run at 1600MHz with CL11 latency at 1.35V and include ECC error correction for data integrity in professional workloads.

Upgrade Path

It replaces lower-capacity unbuffered or non-ECC memory that cannot meet workstation stability requirements. The jump is worthwhile when expanding a supported Supermicro platform beyond 32GB or when adding registered ECC modules to a server-grade board that rejects consumer DIMMs. It will not fit standard desktop motherboards or mix with unbuffered memory.

Sustained Operation

Registered buffering and ECC circuitry maintain signal integrity during continuous multi-threaded compute or virtualisation tasks. The 1.35V DDR3L voltage reduces thermal output compared with standard DDR3, helping stability in densely populated memory channels over long periods. No heat spreader is fitted, so chassis airflow must handle module cooling directly.

How it compares

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

Price $177.99
Cheaper than about 59% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB (4 × 16 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $2.78 per GB
Cheaper than about 91% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number1R6T32R4064S
Total capacity64 GB (4 × 16 GB)
Product type240-Pin DDR3L ECC RDIMM
Performance
Rated speedDDR3L 1600 (PC3L 12800)
Memory
CAS latencyCL11
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.35 V
Compatibility
Compatible systemsSupermicro SuperWorkstation 7037A Series
Supermicro SuperWorkstation 7047AX Series
Supermicro SuperWorkstation 7047GR Series

Other versions of this model

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Questions about this item

Will the 240-pin DDR3L RDIMMs fit in a Supermicro SuperWorkstation 7037A?

Yes, this 64GB kit of four 16GB modules is validated for the Supermicro SuperWorkstation 7037A, 7047AX and 7047GR series.

What is the correct way to install the 2Rx4 registered DIMMs, and what mistake should I avoid?

Power down the workstation, open the chassis, and seat each 240-pin module firmly until the retention clips lock; do not mix these registered ECC DIMMs with any unbuffered memory.

When will the ECC registered memory need replacement or maintenance?

The modules have no heat spreader and no moving parts, so no routine maintenance is required; they carry a limited lifetime warranty and should only be replaced if a memory test reports correctable or uncorrectable ECC errors.

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