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Four green DDR3L 240-pin RDIMM modules with gold contacts, no heat spreaders

OWC

OWC 128GB (4x32GB) DDR3L 1600 CL11 ECC RDIMM Supermicro X9QRi X9SRD

SKU CH-E624-NARMD

128 GB DDR3L ECC registered kit (four 32 GB modules) for Supermicro X9QRi and X9SRD servers

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR3L 1600 (PC3L 12800)
  • CAS latencyCL11
  • Rated voltage1.35 V
  • Buffer typeRegistered
  • Memory rank4Rx4

Capacity 128GB (4 x 32GB)

  • 128 GB total capacity from four 32 GB modules
  • DDR3L 1600 CL11 speed for server workloads
  • ECC registered design protects data integrity
  • 35 V low-voltage operation reduces power draw
  • Validated for Supermicro X9QRi and X9SRD motherboards

Server memory kit

This 128GB kit contains four 32GB DDR3L 1600 CL11 registered ECC modules built for Supermicro X9QRi and X9SRD motherboards. The 240-pin RDIMMs operate at 1.35V and use a 4Rx4 organisation. They are intended for workstation, server or NAS platforms that require registered error-correcting memory and cannot accept unbuffered DIMMs.

Sustained operation

ECC circuitry detects and corrects single-bit errors during continuous workloads, helping maintain data integrity in multi-user or virtualised environments. Registered buffering reduces electrical load on the memory controller, allowing all four modules to run at the rated PC3L-12800 speed without signal degradation over long periods. The low-voltage DDR3L design keeps power draw modest under constant utilisation.

Build and connectors

Modules ship without heat spreaders, relying on chassis airflow for cooling in dense server configurations. Each 240-pin DIMM follows JEDEC and RoHS standards, ensuring mechanical fit in the target Supermicro slots. The kit is validated for the X9QRi and X9SRD series only; it will not work in standard desktop boards or systems that require unbuffered memory.

How it compares

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

Price $301.99
Cheaper than about 54% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (4 × 32 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $2.36 per GB
Cheaper than about 92% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number1R6T34R4128S
Total capacity128 GB (4 × 32 GB)
Product type240-Pin DDR3L ECC RDIMM
Performance
Rated speedDDR3L 1600 (PC3L 12800)
Memory
CAS latencyCL11
ECC supportYes
Buffer typeRegistered
Memory rank4Rx4
Heat spreaderNo
Power
Rated voltage1.35 V
Compatibility
Compatible systemsSupermicro Motherboard X9QRi Series
Supermicro Motherboard X9SRD Series

Other versions of this model

5 more in the same range

Questions about this item

How much power does the 1.35V DDR3L kit draw when the server runs continuously?

Each module operates at 1.35V, lower than standard DDR3, reducing overall power draw and heat output during 24/7 operation.

What must the motherboard provide for these 240-pin registered DIMMs to function?

The board must support DDR3L ECC registered memory at 1600 MHz with 240-pin slots and accept 4Rx4 modules.

Will these modules work alongside older unbuffered DDR3 DIMMs already installed?

No, registered ECC memory cannot be mixed with unbuffered memory; all slots must use registered ECC modules.

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