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Four green DDR4 RDIMM sticks, 288-pin, no heat spreader

OWC

OWC 32GB (4x8GB) DDR4 2666 ECC Registered RDIMM server RAM

SKU CH-D2BM-T1KQ4

A 32 GB kit of four 8 GB DDR4 2666 ECC registered RDIMMs for Synology FlashStation FS3400, FS3410 and FS3600 servers

  • Capacity32GB (4 x 8GB)
  • Type288-Pin DDR4 SDRAM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.2V
  • ECCYes

Capacity 32GB (4 x 8GB)

Rank 1Rx4

  • ECC registered design prevents data errors in critical workloads
  • 32 GB kit with four 8 GB modules expands server capacity
  • DDR4 2666 CL19 at 1.2 V matches JEDEC standard specs
  • Backward compatible with 2133 MHz and 2400 MHz systems
  • 288-pin registered DIMM form factor fits Synology FS3400, FS3410, FS3600

ECC Registered DDR4 Kit

This OWC kit supplies 32GB of DDR4 2666 ECC registered memory in a 4 x 8GB configuration. It targets administrators upgrading Synology FlashStation FS3400, FS3410 and FS3600 units or equivalent workstation and NAS platforms that require registered DIMMs. Standard desktop boards cannot use these modules.

Capacity and Headroom

The 32GB total (4 x 8GB) fills four slots with single-rank 1Rx4 modules rated CL19 at 1.2V. Registered buffering and ECC protect data integrity under sustained server workloads. Systems needing more than 32GB or load-reduced DIMMs must look elsewhere. Mixing with unbuffered or LR-DIMM memory is not supported.

Build and Connectors

Each stick uses the 288-pin RDIMM form factor without a heat spreader, keeping height low for dense chassis. Gold-edge contacts meet JEDEC and RoHS standards. Backward compatibility with 2133MHz and 2400MHz buses allows deployment in older slots while running at the rated 2666MHz speed where supported.

Ciri-ciri utama

  • ECC registered design prevents data errors in critical workloads
  • 32 GB kit with four 8 GB modules expands server capacity
  • DDR4 2666 CL19 at 1.2 V matches JEDEC standard specs
  • Backward compatible with 2133 MHz and 2400 MHz systems
  • 288-pin registered DIMM form factor fits Synology FS3400, FS3410, FS3600

Spesifikasi

BrandOWC
Part Number2R6D41R4032S
Capacity32GB (4 x 8GB)
Type288-Pin DDR4 SDRAM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank1Rx4
Multi-channel KitDual Channel Kit
Heat SpreaderNo

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Will these 2666 MHz ECC Registered DIMMs run correctly with the 2133 MHz and 2400 MHz modules already in my Synology FS3400?

Yes, the kit is backward compatible with 2133 MHz and 2400 MHz DDR4 speeds, so it will downclock to match the slower modules while keeping ECC Registered operation.

How can I verify the 32 GB kit is detected at 2666 MHz CL19 after installation?

Check the Synology DSM Resource Monitor or the BIOS memory information screen; it should show 32 GB total, DDR4 2666, CL19 timings and ECC Registered status for each of the four 8 GB modules.

Does the package include only the four 8 GB RDIMMs or are any tools or cables supplied?

The box contains only the four 288-pin DDR4 2666 ECC Registered 8 GB modules; no tools, cables or additional hardware are included.

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