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Green circuit board with gold edge connectors and black memory chips

OWC

OWC 128GB DDR5 5600 ECC Registered RDIMM 4Rx4 CL46 1.1V 288-pin Memory Upgrade

SKU CH-3QNM-DNZEM

A 128GB DDR5 5600 ECC registered RDIMM for Lenovo ThinkAgile VX650 V3, SD650-N V3 and SR680a V3 servers

  • Total capacity128 GB
  • Rated speedDDR5 5600 (PC5 44800)
  • CAS latency46
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • Memory rank4Rx4

Capacity 128GB

  • ECC registered design protects data integrity in critical workloads
  • 128GB single module maximises capacity per DIMM slot
  • DDR5 5600 speed delivers high bandwidth for server tasks
  • 1V operation reduces power draw in dense configurations
  • Validated for Lenovo ThinkAgile VX650 V3 SD650-N V3 SR680a V3

Server Memory Upgrade

This 128GB DDR5 5600 ECC Registered RDIMM is built for Lenovo ThinkAgile VX650 V3, SD650-N V3 and SR680a V3 platforms. It serves administrators who need a single high-capacity module to expand memory in validated server configurations.

Sustained Operation

ECC Registered design with 4Rx4 organisation corrects single-bit errors and buffers address and command signals, helping data integrity during continuous workloads. The JEDEC-standard 1.1V voltage and CL46 latency support stable throughput at the rated 5600 MT/s speed.

Build and Connectors

The 288-pin DDR5 form factor fits the approved ThinkAgile slots without a heat spreader, allowing dense population in supported chassis. Registered buffering means it cannot be mixed with unbuffered or load-reduced modules, so matching memory types is required.

How it compares

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

Price $3,864.99
Pricier than about 76% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB
Higher than about 70% of the 20,941 comparable items (median 32 GB).
CAS latency 46
Higher than about 90% of the 483 comparable items (median 22).
Price per GB $30.20 per GB
Pricier than about 86% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number5R6D54R4128G
Total capacity128 GB
Product type288-Pin DDR5 ECC RDIMM
Performance
Rated speedDDR5 5600 (PC5 44800)
Memory
CAS latency46
ECC supportYes
Buffer typeRegistered
Memory rank4Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsLenovo ThinkAgile VX650 V3
Lenovo ThinkAgile SD650-N V3
Lenovo ThinkAgile SR680a V3

Other versions of this model

5 more in the same range

Questions about this item

How much power does the 128 GB DDR5 5600 module draw at 1.1 V?

It runs at the standard DDR5 voltage of 1.1 V, so power draw per DIMM is low and scales with the 5600 MT/s data rate in your Lenovo ThinkAgile VX650 V3.

Which server models accept this 288-pin ECC Registered RDIMM?

Qualified for Lenovo ThinkAgile VX650 V3, SD650-N V3 and SR680a V3; the module is not compatible with standard desktops or unbuffered memory slots.

Can I mix this 4Rx4 registered DIMM with older load-reduced ECC modules?

No — the manufacturer highlights state it cannot be mixed with unbuffered or load-reduced ECC memory, so populate all slots with matching registered DIMMs.

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