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OWC

OWC 1TB DDR4 3200 ECC Registered RDIMM Kit 4x256GB

SKU CH-Y7P2-E2YRA

A 1 TB DDR4 3200 ECC registered RDIMM kit of four 256 GB modules for Cisco UCS C220 M5, C240 M5, C240 M6, C245 M6 and B480 M5 servers

Capacity 1TB (4 x 256GB)

  • 1TB total capacity with four 256GB modules
  • DDR4 3200 speed rated at PC4-25600 CL22
  • ECC registered RDIMM for server reliability
  • 288-pin 1.2V design fits Cisco UCS C240 M6 C245 M6 B480 M5 C220 M5 C240 M5
  • JEDEC and RoHS compliant with lifetime warranty

1TB DDR4 ECC Registered Kit

This kit provides 1TB of DDR4 3200 ECC Registered memory across four 256GB RDIMM modules. It is built for Cisco UCS servers including the C240 M6, C245 M6, B480 M5, C220 M5 and C240 M5. The modules operate at 1.2V with a CL22 latency and 8Rx4 octal-rank organisation. Standard desktop systems cannot use this memory.

Sustained server workloads

ECC Registered architecture corrects single-bit errors and reduces electrical load on the memory controller during continuous operation. The octal-rank design allows high density per slot while maintaining signal integrity under heavy multi-threaded demand. JEDEC-compliant 3200 MT/s timing ensures stable throughput for virtualisation, database and compute tasks that run for extended periods.

DDR4 platform limits

DDR4 3200 PC4-25600 represents the upper standard speed for this generation. The 288-pin RDIMM form factor and 1.2V operation are fixed by the specification. Capacity per module is constrained by the 8Rx4 organisation and registered buffer. Mixing with unbuffered or load-reduced DIMMs is not supported.

How it compares

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

Price $6,069.99
Pricier than about 82% of the 21,161 comparable items (median $397.99).

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Specifications

No published specifications for this item yet.

Other versions of this model

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Questions about this item

How much power does the 1.2V DDR4 3200 kit draw when the server runs continuously?

Each 256GB module operates at 1.2V, matching the JEDEC DDR4 standard. Total power scales with the number of populated slots and the server workload, so the platform's own power budget determines the final draw.

What server hardware must already be installed for this 4x256GB RDIMM kit to function?

The kit is validated for Cisco UCS C240 M6, C245 M6, B480 M5, C220 M5 and C240 M5 platforms. It requires 288-pin DDR4 RDIMM slots and a memory controller that supports 8Rx4 registered ECC modules.

Can these 8Rx4 registered DIMMs share channels with older unbuffered or load-reduced modules I want to keep?

No. The manufacturer states the memory cannot be mixed with unbuffered or ECC load-reduced DIMMs. All populated slots should use identical registered ECC modules for correct operation.

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