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Four green LRDIMM modules with gold contacts and black chips

OWC

OWC 1TB (4x256GB) DDR4 3200 PC4-25600 CL22 8Rx4 288-pin 1.2V ECC Load Reduced LRDIMM memory upgrade

SKU CH-X9JX-63QY8

A 1 TB kit of four 256 GB DDR4 3200 ECC load-reduced DIMMs for Cisco UCS C240 M6 and C245 M6 servers

Capacity 1TB (4 x 256GB)

  • 1 TB capacity in a four-module kit
  • DDR4 3200 MHz CL22 for high-throughput workloads
  • ECC load-reduced design protects data integrity
  • 2 V operation reduces power draw per module
  • JEDEC and RoHS compliant for warranty-safe upgrades

Server memory upgrade kit

This OWC kit delivers 1TB of DDR4 ECC load-reduced memory across four 256GB modules. The 288-pin LRDIMMs run at 3200MHz with CL22 latency and 1.2V operation. Designed for Cisco UCS C240 M6 and C245 M6 servers, the modules provide high-density capacity for virtualisation and database workloads.

Compatibility and standards

The kit is JEDEC-standard and ROHS compliant, ensuring a warranty-safe upgrade for supported platforms. Backward compatibility covers 2133MHz, 2400MHz, 2666MHz and 2933MHz speeds, allowing deployment in mixed-speed environments. Load-reduced architecture reduces electrical load on the memory bus compared to standard registered DIMMs.

Suitable for Cisco UCS servers

This memory suits administrators expanding Cisco UCS C240 M6 or C245 M6 systems with maximum supported capacity. It will not work in standard desktop computers or consumer motherboards. Buyers needing unbuffered or standard registered ECC DIMMs should look at other memory types, as load-reduced modules cannot be mixed with those technologies.

How it compares

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

Price $5,836.99
Pricier than about 81% of the 21,161 comparable items (median $397.99).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

No published specifications for this item yet.

Other versions of this model

5 more in the same range

Questions about this item

Will the four 256GB LRDIMMs need any firmware updates or battery-backed spares over their service life?

The modules are JEDEC-standard DDR4 LRDIMMs with on-die ECC; they have no onboard battery and require no firmware updates once seated in a compatible Cisco UCS C240 M6 or C245 M6 server.

What thermal or power ceiling will the kit hit first when all four slots run at 3200MHz continuously?

Each stick draws 1.2V at the rated PC4-25600 speed; the server's memory-subsystem cooling and VRM design set the practical limit before the DIMMs themselves throttle.

How much extra fan noise and case heat should I expect from the 1TB kit under 24/7 load?

The LRDIMMs operate at standard 1.2V DDR4 voltage, so their incremental heat and acoustic contribution matches other PC4-25600 registered modules in the same chassis.

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