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Eight green DDR4 LRDIMM modules with gold contacts in static-safe packaging

OWC

OWC 2TB (8x256GB) DDR4 2933 PC4-23400 CL21 8Rx4 288-pin 1.2V ECC Load Reduced LRDIMM memory upgrade

SKU CH-CAHX-5CTEV

Eight 256 GB DDR4 2933 ECC load-reduced DIMMs totalling 2 TB for Cisco UCS servers

Capacity 2TB (8 x 256GB)

  • 2 TB total capacity across eight 256 GB modules
  • ECC load-reduced design protects data integrity in servers
  • DDR4 2933 MHz CL21 speed for high-throughput workloads
  • 2 V operation reduces power draw per module
  • Backward compatible with 2133, 2400 and 2666 MHz systems

2TB ECC Load Reduced Kit

This kit provides 2TB of DDR4 memory across eight 256GB LRDIMM modules. It is built for Cisco UCS B200 M5, B480 M5, C220 M5, C240 M5 and C480 M5 servers. The load-reduced design reduces electrical load on the memory bus. It is not compatible with standard desktop computers or with unbuffered and registered ECC memory.

DDR4 2933 PC4-23400 Interface

Each module runs at 2933MHz with a CAS latency of 21 and operates at 1.2V. The 288-pin form factor fits server and workstation slots. Backward compatibility covers 2133MHz, 2400MHz and 2666MHz systems. Mixing with other ECC types is not supported and will prevent operation.

Replaces Cisco UCSML256G8RTH

This kit directly replaces the Cisco part number UCSML256G8RTH for the listed UCS M5 platforms. The upgrade is worthwhile when current capacity limits virtualization density or in-memory database performance. It is not suited for environments that require registered DIMMs or consumer-grade hardware.

Highlights

  • 2 TB total capacity across eight 256 GB modules
  • ECC load-reduced design protects data integrity in servers
  • DDR4 2933 MHz CL21 speed for high-throughput workloads
  • 2 V operation reduces power draw per module
  • Backward compatible with 2133, 2400 and 2666 MHz systems

Specifications

No published specifications for this item yet.

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Questions about this item

Should I pick the 256 GB modules or a different capacity?

The kit supplies eight 256 GB LRDIMMs for a total of 2 TB. No other capacities are offered in this listing.

What does the 2933 MHz rating deliver in a Cisco UCS server?

The modules run at DDR4-2933 with CL21 latency and will down-clock to 2666, 2400 or 2133 MHz if the platform requires it.

How does the PC4-23400 standard limit performance?

PC4-23400 defines a 2933 MT/s data rate; the memory cannot exceed that speed but will operate at lower JEDEC speeds when needed.

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