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Eight green 288-pin DDR4 LRDIMM modules in a row

OWC

OWC 2TB (8×256GB) DDR4 2933 CL21 ECC Load Reduced LRDIMM Kit for Supermicro H12SST-PS

SKU CH-Q8NQ-97BAW

Eight 256 GB DDR4 2933 CL21 ECC load-reduced DIMMs totalling 2 TB for Supermicro H12SST-PS servers

Capacity 2TB (8 x 256GB)

  • 2 TB total capacity from eight 256 GB modules
  • DDR4 2933 MHz CL21 speed with 1.2 V operation
  • ECC load-reduced design for server and workstation stability
  • JEDEC and RoHS compliant for warranty-safe upgrades
  • Backward compatible with 2133, 2400 and 2666 MHz systems

2 TB ECC Load-Reduced DDR4 Kit

This OWC kit provides 2 TB of DDR4 memory across eight 256 GB LRDIMM modules running at 2933 MHz with CL21 latency. It is built for servers and workstations that require error-correcting load-reduced DIMMs rather than standard unbuffered or registered memory.

Check motherboard slot count and memory type

The target board must be the Supermicro H12SST-PS with enough 288-pin slots for eight modules and support for ECC load-reduced DIMMs at 1.2 V. This memory cannot be mixed with unbuffered or ECC registered modules, so all existing DIMMs must be removed or match the same specification.

Sustained operation at rated speed

Each module operates continuously at 2933 MHz (PC4-23400) with CL21 timings and 1.2 V under full load. The load-reduced design reduces electrical loading on the memory bus, helping maintain signal integrity when all eight slots are populated for long-running server workloads.

Punti di forza

  • 2 TB total capacity from eight 256 GB modules
  • DDR4 2933 MHz CL21 speed with 1.2 V operation
  • ECC load-reduced design for server and workstation stability
  • JEDEC and RoHS compliant for warranty-safe upgrades
  • Backward compatible with 2133, 2400 and 2666 MHz systems

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What comes in the OWC 2TB DDR4 2933 kit and is anything else required?

The kit contains eight 256GB DDR4 2933 CL21 ECC Load Reduced LRDIMM modules. No extra parts are needed for installation in a compatible Supermicro H12SST-PS system.

Should I choose the 2933MHz speed or a lower speed for my server?

The modules run at 2933MHz (PC4-23400) and are backward compatible with 2666MHz, 2400MHz and 2133MHz. Select 2933MHz if your platform supports it; otherwise the memory will downclock automatically.

What does the 2933MHz CL21 rating mean once the memory is installed?

It indicates a data rate of 2933 MT/s with a CAS latency of 21 cycles. The system will operate at this speed or at the highest supported speed of the platform, up to 2933MHz.

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