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Four green DDR4 ECC registered RDIMM modules in a row

OWC

OWC 1TB (4×256GB) DDR4 3200 CL22 8Rx4 288-pin 1.2V ECC Registered RDIMM Kit

SKU CH-XHYX-DMST2

A 1 TB DDR4 server memory kit with four 256 GB ECC registered RDIMMs running at 3200 MT/s CL22

Capacity 1TB (4 x 256GB)

  • 1 TB capacity for demanding server workloads
  • Four 256 GB modules provide high-density memory
  • DDR4 3200 speed with CL22 latency
  • ECC registered design protects data integrity
  • 2 V operation reduces power consumption

1 TB Registered ECC Kit

This kit supplies one terabyte of DDR4 server memory in four matched 256 GB modules. It is built for workstations, servers and NAS systems that require registered ECC DIMMs and cannot accept unbuffered or load-reduced memory.

DDR4 3200 CL22 8Rx4

Each module runs at DDR4 3200 with CAS latency 22 and an 8Rx4 octal-rank organisation, the single specification that determines whether the platform can address the full capacity. The 288-pin registered DIMMs operate at 1.2 V and conform to JEDEC PC4-25600 timings.

Four-slot population

Populating four DIMM slots with these 256 GB modules delivers the rated density while leaving other channels free for additional kits if the motherboard supports them. The registered design requires a platform that explicitly supports registered ECC; standard desktop boards will not post with this memory installed.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $6,118.99
Pricier than about 90% of the 6,523 comparable items (median $188.99).

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

4 more in the same range

Questions about this item

How much total memory does this kit provide once installed?

The kit contains four 256 GB modules for a combined 1 TB of DDR4 ECC registered memory.

What does PC4-25600 mean for actual transfer speed?

PC4-25600 is the JEDEC designation for DDR4-3200, so the modules run at 3200 MT/s when the platform supports that data rate.

Will these 288-pin RDIMMs fit a standard server DIMM slot?

Yes, they use the 288-pin DDR4 RDIMM form factor used by compatible workstations, servers and NAS systems.

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