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Green 240-pin DDR3L ECC registered RDIMM module with black chips, no heat spreader

OWC

OWC 32GB DDR3L 1600 CL11 4Rx4 240-pin 1.35V ECC Registered RDIMM

SKU CH-CM99-N2WXK

A 32 GB DDR3L 1600 CL11 ECC registered RDIMM for Supermicro H8DCT, H8DG6, H8DGT, H8DGU and H8QG7 motherboards

  • Total capacity32 GB
  • Rated speedDDR3L 1600 (PC3L 12800)
  • CAS latencyCL11
  • Rated voltage1.35 V
  • Buffer typeRegistered
  • Memory rank4Rx4

Capacity 32GB

  • ECC registered design protects data integrity in servers
  • 32 GB single module expands capacity for demanding workloads
  • DDR3L 1600 CL11 speed matches qualified Supermicro platforms
  • 35 V low-voltage operation reduces power draw
  • 240-pin 4Rx4 form factor fits H8DCT H8DG6 H8DGT H8DGU H8QG7 motherboards

Server-grade 32 GB DDR3L module

This 32 GB DDR3L 1600 CL11 registered ECC DIMM is built for Supermicro H8DCT, H8DG6, H8DGT, H8DGU and H8QG7 motherboards. It targets administrators who need to expand memory capacity in existing workstation or server platforms. The single-module design simplifies upgrades without requiring matched pairs. It will not work in standard desktop systems or alongside unbuffered memory.

Sustained ECC throughput at 1.35 V

The module operates at DDR3L 1600 (PC3L-12800) with CL11 latency and a 1.35 V supply, delivering error-correcting bandwidth continuously under multi-threaded server workloads. Registered buffering reduces electrical load on the memory controller, helping stability when all slots are populated. JEDEC-compliant timings ensure predictable behaviour during extended compute runs.

240-pin RDIMM without heat spreader

A bare 240-pin PCB fits dense Supermicro DIMM arrays where tall heat spreaders would block adjacent slots or airflow. The 4Rx4 organisation provides high density per channel while the registered interface keeps signal integrity intact. RoHS-compliant assembly and OWC validation against OEM specifications support long-term deployment in rackmount or tower chassis.

How it compares

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

Price $89.99
Cheaper than about 69% of the 21,161 comparable items (median $397.99).
Total capacity 32 GB
Typical for this category: the median of 20,941 items is 32 GB.
Price per GB $2.81 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 number1R6T34R432 GB
Total capacity32 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 H8DCT Series
Supermicro Motherboard H8DG6 Series
Supermicro Motherboard H8DGT Series
Supermicro Motherboard H8DGU Series
Supermicro Motherboard H8QG7 Series

Other versions of this model

5 more in the same range

Questions about this item

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

The module operates at 1.35V, which is the standard DDR3L voltage, so power draw stays within the JEDEC limit for low-voltage registered DIMMs under sustained load.

What must the motherboard provide for this 240-pin registered ECC DIMM to function?

A Supermicro H8DCT, H8DG6, H8DGT, H8DGU or H8QG7 motherboard with a DDR3L registered DIMM slot and a BIOS that supports 4Rx4 ECC modules.

Can I add this 32GB stick alongside older unbuffered DDR3 DIMMs in the same system?

No. The module is registered ECC and cannot be mixed with unbuffered memory; all populated slots must use registered ECC DIMMs of the same voltage and speed.

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