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Four green DDR3L RDIMM sticks with gold contacts, no heat spreaders

OWC

OWC 128GB (4x32GB) DDR3L 1600 ECC Registered RDIMM 1R6T34R4128S

SKU CH-WYR7-88HW1

128 GB DDR3L 1600 ECC registered RDIMM kit in four 32 GB modules for Supermicro SuperWorkstation 7037A, 7047AX and 7047GR

  • 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)

  • 128GB total capacity from four 32GB modules
  • DDR3L 1600 speed with CL11 latency for responsive performance
  • ECC registered design protects data integrity in workloads
  • 35V low-voltage operation reduces power draw
  • Validated for Supermicro SuperWorkstation 7037A 7047AX 7047GR series

128 GB DDR3L ECC RDIMM kit

This 128 GB kit contains four 32 GB DDR3L 1600 registered DIMMs built for Supermicro SuperWorkstation 7037A, 7047AX and 7047GR systems. It is intended for administrators expanding memory in compatible workstation or server platforms that require ECC registered modules. It will not work in standard desktop computers or alongside unbuffered memory.

Registered ECC with 4Rx4 organisation

The decisive specification is the registered ECC design with 4Rx4 rank configuration at 1.35 V. Only systems that explicitly support DDR3L registered ECC RDIMMs can use this kit; unbuffered or non-ECC platforms will not post.

Straightforward DIMM installation

Modules install in the 240-pin DDR3 slots like any DIMM, but the registered buffer adds electrical load so the motherboard must be qualified for registered memory. The common error is mixing these with unbuffered DIMMs or installing them in a desktop board that lacks registered support.

How it compares

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

Price $313.99
Typical for this category: the median of 21,161 items is $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 $2.45 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 SuperWorkstation 7037A Series
Supermicro SuperWorkstation 7047AX Series
Supermicro SuperWorkstation 7047GR Series

Other versions of this model

5 more in the same range

Questions about this item

How does the 1600 speed translate when the kit is installed in a Supermicro SuperWorkstation?

The modules run at DDR3L 1600 (PC3L-12800) with CL11 timing, delivering the rated bandwidth once the workstation's memory controller is configured for that speed.

What does the PC3L-12800 designation cap in practice?

PC3L-12800 sets the maximum data rate at 12800 MB/s per module; the registered ECC design adds a clock cycle for buffering, so sustained throughput will sit at or below that ceiling.

What physical slot and spacing does the 240-pin RDIMM need to fit?

Each 32 GB stick uses a standard 240-pin DDR3 DIMM slot; the kit occupies four adjacent slots in the SuperWorkstation 7037A, 7047AX or 7047GR chassis.

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