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Green rectangular circuit board with gold edge contacts and black memory chips, no heat spreader

OWC

OWC 2R9D42R432GB 32GB DDR4 2933MHz ECC Registered RDIMM

SKU CH-KFKB-X75VT

32 GB DDR4 2933 MHz ECC registered RDIMM for Supermicro X11 server motherboards

  • Total capacity32 GB
  • Rated speedDDR4 2933 (PC4 23400)
  • CAS latencyCL21
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank2Rx4

Capacity 32GB

  • 32GB capacity expands server memory headroom
  • DDR4 2933MHz CL21 delivers 23400 MT/s bandwidth
  • ECC registered design protects data integrity in critical workloads
  • 2V operation reduces power draw per module
  • Validated for Supermicro X11DAC, X11DAi-N, X11DDW-L, X11DDW-NT, X11DGO-T

Server ECC RDIMM for Supermicro X11

This 32GB DDR4 2933MHz registered DIMM targets server and workstation builders who need error-correcting memory for Supermicro X11DAC, X11DAi-N, X11DDW-L, X11DDW-NT or X11DGO-T motherboards. It delivers 2Rx4 organisation at CL21 latency and 1.2V operation. The module is not compatible with standard desktop platforms or unbuffered memory configurations.

Fits X11 DDR4 slots alongside identical modules

The 288-pin RDIMM installs directly into the listed Supermicro boards and runs at 2933MHz with backward compatibility to 2133MHz, 2400MHz and 2666MHz speeds. Registered buffering reduces electrical load on the memory controller, freeing headroom for larger capacity configurations. Mixing with unbuffered DIMMs is not supported.

Sustained ECC operation at JEDEC voltage

Under continuous load the module maintains 1.2V and CL21 timings while ECC corrects single-bit errors in real time. Registered signalling stabilises the command bus across fully populated channels. No heat spreader is fitted, so airflow across the PCB manages thermal performance during extended workloads.

How it compares

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

Price $197.99
Cheaper than about 59% 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 $6.19 per GB
Cheaper than about 63% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number2R9D42R432 GB
Total capacity32 GB
Product type288-Pin DDR4 ECC RDIMM
Performance
Rated speedDDR4 2933 (PC4 23400)
Memory
CAS latencyCL21
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsSupermicro Motherboard X11DAC
Supermicro Motherboard X11DAi-N
Supermicro Motherboard X11DDW-L
Supermicro Motherboard X11DDW-NT
Supermicro Motherboard X11DGO-T

Other versions of this model

5 more in the same range

Questions about this item

How much power does the 1.2V registered DDR4 module draw under sustained load?

The module operates at 1.2V with CL21 timings at 2933MHz; registered buffering adds slight overhead but keeps power draw within standard DDR4 RDIMM limits for server workloads.

Will the 288-pin ECC RDIMM run hot or loud during 24/7 operation?

No heat spreader is fitted; the bare PCB relies on chassis airflow. At 1.2V and CL21 the module stays cool in typical server airflow and adds no audible noise.

Which motherboards must I already own for this 32GB kit to work?

Compatible Supermicro boards are X11DAC, X11DAi-N, X11DDW-L, X11DDW-NT and X11DGO-T; the module also replaces Supermicro part numbers MEM-DR432LC-ER29, MEMDR432LCL01ER29, MEMDR432LCL02ER29, MEMDR432LCL03ER29, MEMDR432LHL01ER29, MEMDR432LHL02ER29, MEMDR432LSL01ER29 and MEMDR432LSL03ER29.

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