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Four green 288-pin DDR4 RDIMM modules without heat spreaders

OWC

OWC 256GB (4x64GB) DDR4 2666MHz CL19 ECC Registered RDIMM 1.2V 288-pin server RAM

SKU CH-V8MV-3FPM5

256 GB kit of four 64 GB DDR4 2666 MHz CL19 ECC registered RDIMMs at 1.2 V for servers and workstations

  • Capacity256GB (4 x 64GB)
  • Type288-Pin DDR4 ECC RDIMM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.2V
  • ECCYes

Capacity 256GB (4 x 64GB)

Voir les 7 autres configurations

Rank 2Rx4

  • High-capacity server upgrade with 256GB total memory
  • Error-correcting ECC registered design protects data integrity
  • JEDEC-compliant DDR4 2666MHz CL19 at 1.2V
  • Four 64GB dual-rank modules in 288-pin RDIMM form
  • Backward compatible with 2133MHz and 2400MHz systems

Server ECC RDIMM kit

This OWC kit provides 256 GB of DDR4 registered ECC memory across four 64 GB modules. It is built for servers, workstations and NAS systems that require error-correcting, registered DIMMs. Standard desktop boards cannot use this memory and it must not be mixed with unbuffered modules.

Installation and compatibility

The 288-pin RDIMMs install like any DIMM but only in platforms that support registered ECC DDR4. The kit runs at 1.2 V and is backward compatible with 2133 MHz and 2400 MHz bus speeds. Systems lacking registered ECC support will not post with these modules installed.

Capacity and headroom

Four 64 GB sticks deliver 256 GB total, suited for virtualisation, large databases and heavy multitasking. The CL19 latency at 2666 MHz (PC4-21300) handles typical server workloads; applications needing lower latency or higher frequency will exceed what this kit provides.

Points forts

  • High-capacity server upgrade with 256GB total memory
  • Error-correcting ECC registered design protects data integrity
  • JEDEC-compliant DDR4 2666MHz CL19 at 1.2V
  • Four 64GB dual-rank modules in 288-pin RDIMM form
  • Backward compatible with 2133MHz and 2400MHz systems

Caractéristiques

BrandOWC
Part Number2R6D42R4256S
Capacity256GB (4 x 64GB)
Type288-Pin DDR4 ECC RDIMM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Multi-channel KitDual Channel Kit
Heat SpreaderNo

Autres versions de ce modèle

5 de plus dans cette gamme

Même famille, mémoire, ventirad ou fréquence différents — comparez avant de vous décider.

Questions sur cet article

How do I verify the 2666MHz CL19 ECC Registered RDIMM is running correctly after installation?

Enter the server BIOS or UEFI and confirm the memory reports 2666MHz speed, CL19 latency, 1.2V voltage and ECC Registered status for all 256GB across the four 64GB modules.

What ships with the 256GB kit and what must be purchased separately?

The kit includes four 64GB DDR4 2666MHz PC4-21300 CL19 2Rx4 ECC Registered 288-pin RDIMM modules; no additional parts are required for installation in a compatible server or workstation.

Which capacity version should I choose for a dual-channel server needing 256GB total?

Select this 256GB (4x64GB) dual-channel kit to populate four slots with matched 64GB modules, delivering 256GB at 2666MHz CL19 ECC Registered across two memory channels.

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