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Green rectangular circuit board with gold edge connectors and black memory chips on both sides

OWC

OWC 64GB DDR4 2666 CL19 4Rx4 ECC LRDIMM 1.2V 288-pin server RAM

SKU CH-09G2-KJ4GK

64GB DDR4-2666 ECC load-reduced LRDIMM, CL19, 1.2V, 288-pin for servers

  • Capacity64GB
  • Type288-Pin DDR4 ECC LRDIMM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.2V
  • ECCYes

Capacity 64GB

  • 64GB single module maximises server density
  • ECC load-reduced design protects data integrity in critical workloads
  • DDR4 2666 CL19 timing balances speed and stability
  • 2V operation lowers power draw per module
  • 288-pin JEDEC form factor fits standard server slots

64GB DDR4 ECC LRDIMM for servers

This module provides 64GB of DDR4 ECC load-reduced memory for compatible servers and workstations. It operates at 2666MHz with CL19 latency and a 1.2V voltage. The 288-pin LRDIMM format uses a 4Rx4 rank configuration without a heat spreader. It is designed for system builders and IT professionals upgrading or maintaining enterprise infrastructure.

Load-reduced design requires platform support

Load-reduced DIMMs reduce electrical load on the memory bus to allow higher capacities per channel. This module will not work in standard desktop computers or consumer motherboards. It cannot be mixed with unbuffered or standard registered DIMMs in the same system. The platform must explicitly support DDR4 LRDIMM technology and ECC functionality for correct operation.

Single 64GB module at 2666MHz CL19

This upgrade consists of one 64GB stick rated at DDR4 2666 (PC4-21300) with CL19 timing. Matching capacity, speed, rank configuration and manufacturer across all populated slots is recommended for optimal stability. Verify your server's qualified vendor list and maximum supported density per slot before purchase.

Points forts

  • 64GB single module maximises server density
  • ECC load-reduced design protects data integrity in critical workloads
  • DDR4 2666 CL19 timing balances speed and stability
  • 2V operation lowers power draw per module
  • 288-pin JEDEC form factor fits standard server slots

Caractéristiques

BrandOWC
Part Number2L6D44R464GB
Capacity64GB
Type288-Pin DDR4 ECC LRDIMM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.2V
ECCYes
Buffered/RegisteredLoad Reduced
Rank4Rx4
Heat SpreaderNo

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Questions sur cet article

Should I choose this single 64GB module or combine smaller capacities?

This is a single 64GB DDR4 2666 CL19 4Rx4 ECC LRDIMM. OWC recommends matching capacity, speed and manufacturer across all slots for optimal performance.

What does the 2666MHz rating deliver in a live server?

The module runs at DDR4 2666 (PC4-21300) with CL19 latency, providing ECC error correction and load-reduced buffering for stable throughput in compatible workstations and servers.

How does the 288-pin LRDIMM interface limit installation?

The 288-pin DDR4 LRDIMM form factor fits only server and workstation boards that support load-reduced ECC memory; it will not work in standard desktop computers or alongside unbuffered DIMMs.

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