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Four green DDR3L ECC registered DIMMs, 240-pin, no heat spreaders

OWC

OWC 128GB (4x32GB) DDR3L 1600 CL11 ECC Registered RDIMM

SKU CH-M786-42WK3

128 GB DDR3L ECC registered kit of four 32 GB modules at 1600 MHz CL11 for Supermicro H8QGL, H8SCM, X10DBT, X10QBi and X10QBL motherboards

  • 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 with four 32 GB modules
  • DDR3L 1600 speed and CL11 latency for responsive server workloads
  • ECC registered design detects and corrects memory errors automatically
  • Low 1.35 V operation reduces power draw and heat
  • Qualified for Supermicro H8QGL, H8SCM, X10DBT, X10QBi and X10QBL motherboards

Targeted Server Upgrade

This 128GB kit comprises four 32GB DDR3L registered DIMMs built for specific Supermicro motherboards including the H8QGL, H8SCM, X10DBT, X10QBi and X10QBL series. It is designed for workstation and server platforms that require ECC registered memory and will not function in standard desktop systems or alongside unbuffered modules.

Capacity and Headroom

The 128GB total capacity provides substantial memory headroom for virtualisation workloads, large databases and multi-user server applications running on compatible hardware. Systems limited to lower maximum memory per channel or those requiring unbuffered DIMMs cannot use this kit, and mixing it with non‑registered memory is not supported.

Build and Connectors

Each module uses a 240‑pin DDR3L interface operating at 1.35V with CL11 latency and a 4Rx4 organisation, meeting JEDEC and RoHS standards. The registered design adds a buffer that stabilises heavy memory loads in multi‑socket server boards, while the absence of heat spreaders keeps the profile low for dense chassis installations.

How it compares

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

Price $343.99
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 $2.69 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 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 H8QGL Series
Supermicro Motherboard H8SCM Series
Supermicro Motherboard X10DBT Series
Supermicro Motherboard X10QBi Series
Supermicro Motherboard X10QBL Series

Other versions of this model

5 more in the same range

Questions about this item

Will the 1.35V DDR3L modules run safely in a Supermicro X10QBi that currently uses 1.5V DDR3 RDIMMs?

The kit operates at 1.35V DDR3L; mixing voltages is not supported, so all slots must be populated with 1.35V modules for correct operation.

How can I confirm the 4Rx4 registered ECC DIMMs are recognised at 1600 CL11 after installation?

Check the BIOS memory information screen — it should show 128GB total, 1600 MT/s, CL11 timings and ECC registered status for each of the four 32GB modules.

Does the 128GB kit include only the four 240-pin RDIMMs or are any cables or brackets supplied?

The package contains the four 32GB DDR3L 1600 CL11 4Rx4 registered ECC RDIMMs; no cables, brackets or additional hardware are included.

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