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Two green DDR4 RDIMM modules with gold contacts, no heat spreaders

OWC

OWC 32GB (2x16GB) DDR4 2666 ECC Registered RDIMM CL19 1.2V server RAM

SKU CH-13MP-3AX8T

ECC registered dual-channel kit adds 32 GB of DDR4-2666 CL19 server memory for Synology FS2017 compatibility

  • Capacity32GB (2 x 16GB)
  • Type288-Pin DDR4 SDRAM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.2V
  • ECCYes

Capacity 32GB (2 x 16GB)

Rank 2Rx4

  • ECC registered design prevents data errors in servers
  • 32 GB dual-channel kit expands NAS memory capacity
  • DDR4 2666 CL19 1.2 V matches OEM specifications
  • JEDEC and RoHS compliant for warranty-safe upgrades
  • Backward compatible with 2133 MHz and 2400 MHz systems

Server-grade ECC Registered DDR4

This OWC kit delivers 32GB of DDR4 2666 ECC Registered memory in a matched pair of 16GB modules. It is built for servers, workstations and NAS systems that require registered DIMMs with error correction. Standard desktop platforms cannot use this memory type.

Sustained operation with registered buffering

The registered design places a buffer between the memory controller and the DRAM chips, reducing electrical load during continuous workloads. ECC circuitry detects and corrects single-bit errors in real time, maintaining data integrity across long compute sessions. CL19 latency and 1.2V operation keep timing consistent under load.

DDR4 2666 interface limits

The modules run at the PC4-21300 standard and will down-clock to 2133MHz or 2400MHz when the platform demands it. They cannot be mixed with unbuffered or load-reduced DIMMs, and they will not function in consumer motherboards that lack registered memory support. JEDEC compliance ensures broad server and workstation compatibility.

Points forts

  • ECC registered design prevents data errors in servers
  • 32 GB dual-channel kit expands NAS memory capacity
  • DDR4 2666 CL19 1.2 V matches OEM specifications
  • JEDEC and RoHS compliant for warranty-safe upgrades
  • Backward compatible with 2133 MHz and 2400 MHz systems

Caractéristiques

BrandOWC
Part Number2R6D42R4032P
Capacity32GB (2 x 16GB)
Type288-Pin DDR4 SDRAM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Multi-channel KitDual Channel Kit
Heat SpreaderNo

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Questions sur cet article

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

Each module operates at 1.2V, the standard JEDEC voltage for DDR4 2666, so total power scales with the 32GB capacity and the 2Rx4 registered design rather than a higher voltage.

What must the system already provide for these 288-pin registered DIMMs to function?

A server, workstation or NAS motherboard with DDR4 RDIMM slots, a memory controller that supports ECC registered memory, and a CPU/chipset qualified for PC4-21300 speeds.

Will the 2666 MHz CL19 modules run stably alongside existing 2133 MHz or 2400 MHz DDR4 ECC RDIMMs?

Yes, the kit is backward compatible with 2133 MHz and 2400 MHz; the system will clock all installed modules to the lowest common speed and matching timings.

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