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Four green 288-pin DDR4 RDIMM modules in static bags

OWC

OWC 128GB (4x32GB) DDR4 2666 CL19 2Rx4 288-pin 1.2V ECC Registered RDIMM for Synology DP7200 DP7400

SKU CH-SY6S-HEH3A

128 GB DDR4 2666 ECC registered RDIMM kit of four 32 GB modules for Synology DP7200 and DP7400 servers

  • Capacity128GB (4 x 32GB)
  • Type288-Pin DDR4 ECC RDIMM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS Latency19
  • Voltage1.2V
  • ECCYes

Capacity 128GB (4 x 32GB)

  • ECC registered design protects data integrity for Synology DP7200 and DP7400 systems
  • 128GB kit with four 32GB modules maximises server memory capacity
  • DDR4 2666 CL19 at 1.2V delivers JEDEC-standard performance
  • Registered 2Rx4 modules ensure stable operation in workstation and NAS environments
  • Backward compatible with 2133MHz and 2400MHz platforms for flexible deployment

Synology ActiveProtect DP7200 and DP7400 upgrade

This 128 GB kit contains four 32 GB DDR4 2666 ECC registered DIMMs built for Synology ActiveProtect DP7200 and DP7400 appliances. The modules run at 1.2 V with CL19 latency and a 2Rx4 organisation. They are not compatible with standard desktop platforms or with unbuffered and load-reduced memory types.

Sustained server workloads

ECC registered operation corrects single-bit errors and reduces electrical load on the memory controller during continuous use. The JEDEC-standard PC4-21300 rating ensures stable throughput at 2666 MT/s without relying on short-burst overclocking headroom.

DDR4 2666 interface limits

The DDR4 2666 interface caps peak bandwidth at the PC4-21300 level and the kit will down-clock to 2400 or 2133 MT/s if the system requires it. No higher DDR4 speeds or other memory generations are supported by this module design.

Puntos fuertes

  • ECC registered design protects data integrity for Synology DP7200 and DP7400 systems
  • 128GB kit with four 32GB modules maximises server memory capacity
  • DDR4 2666 CL19 at 1.2V delivers JEDEC-standard performance
  • Registered 2Rx4 modules ensure stable operation in workstation and NAS environments
  • Backward compatible with 2133MHz and 2400MHz platforms for flexible deployment

Especificaciones

BrandOWC
Part Number2R6D42R4128S
Capacity128GB (4 x 32GB)
Type288-Pin DDR4 ECC RDIMM
SpeedDDR4 2666 (PC4 21300)
CAS Latency19
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Heat SpreaderNo
Compatible SystemSynology ActiveProtect DP7200
Synology ActiveProtect DP7400

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Preguntas sobre este artículo

How much power does the 1.2V DDR4 2666 kit draw when the Synology DP7200 runs continuously?

Each 32GB module operates at 1.2V, the standard DDR4 voltage, keeping power draw low during all-day workloads on the DP7200 or DP7400.

What must the Synology DP7400 already support for this 2Rx4 registered ECC memory to function?

The DP7400 must accept 288-pin DDR4 2666 registered ECC RDIMMs; the kit will not work in systems that only take unbuffered or load-reduced DIMMs.

Will the 2666MHz CL19 modules run reliably alongside older 2133MHz DDR4 already installed in a DP7200?

Yes, the kit is backward compatible with 2133MHz and 2400MHz DDR4, so it will downclock to match the slower modules in the DP7200.

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