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Two green 288-pin DDR4 LRDIMM sticks, bare chips, no heat spreader

OWC

OWC 64GB (2x32GB) DDR4 2666MHz CL19 ECC Load Reduced LRDIMM 1.2V 288-pin Server RAM

SKU CH-14WJ-XCAB2

A 64GB dual-channel kit of DDR4 2666MHz ECC load-reduced LRDIMMs for servers, workstations and NAS systems

  • Capacity64GB (2 x 32GB)
  • Type288-Pin DDR4 ECC LRDIMM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.2V
  • ECCYes

Capacity 64GB (2 x 32GB)

  • ECC protection keeps data accurate with 4Rx4 load-reduced design
  • 64 GB dual-channel kit delivers 32 GB per module for server workloads
  • DDR4 2666 speed at CL19 latency runs on 1.2 V for efficient operation
  • 288-pin LRDIMM form factor fits server, workstation and NAS platforms
  • Backward compatible with 2133 MHz and 2400 MHz systems for flexible deployment

Server ECC LRDIMM Kit

This OWC kit provides 64GB of DDR4 server memory in a dual-channel pair of 32GB modules. It is designed for workstations, servers and NAS systems that require error-correcting load-reduced DIMMs. The modules operate at 1.2V and carry a CL19 latency rating.

Load-Reduced 4Rx4 Architecture

The defining specification is the 4Rx4 load-reduced design with ECC. This architecture reduces electrical load on the memory controller, allowing higher total capacity per channel than standard registered DIMMs. It will not work in desktop boards and cannot be mixed with unbuffered memory.

288-Pin DDR4 Compatibility

Each module uses the 288-pin DDR4 form factor and is backward compatible with 2133MHz and 2400MHz bus speeds. The kit frees two DIMM slots for the full 64GB capacity and requires a platform that explicitly supports DDR4 ECC LRDIMM memory.

I korthet

  • ECC protection keeps data accurate with 4Rx4 load-reduced design
  • 64 GB dual-channel kit delivers 32 GB per module for server workloads
  • DDR4 2666 speed at CL19 latency runs on 1.2 V for efficient operation
  • 288-pin LRDIMM form factor fits server, workstation and NAS platforms
  • Backward compatible with 2133 MHz and 2400 MHz systems for flexible deployment

Specifikationer

BrandOWC
Part Number2L6D44R4064P
Capacity64GB (2 x 32GB)
Type288-Pin DDR4 ECC LRDIMM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.2V
ECCYes
Buffered/RegisteredLoad Reduced
Rank4Rx4
Multi-channel KitDual Channel Kit
Heat SpreaderNo

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How does 64GB of DDR4 2666MHz ECC LRDIMM perform in a real server?

The kit delivers 64GB total capacity across two 32GB modules running at 2666MHz with CL19 latency, providing error correction and load-reduced buffering for stable operation in compatible servers and workstations.

What does the PC4-21300 DDR4 2666MHz interface cap in practice?

The DDR4 2666MHz (PC4-21300) interface supports data rates up to 2666MT/s and is backward compatible with 2400MHz and 2133MHz systems, operating at the highest speed the platform allows.

What does the 288-pin LRDIMM form factor need to fit in a server?

Each 288-pin DDR4 LRDIMM module requires a DDR4 LRDIMM-compatible DIMM slot on a server, workstation, or NAS motherboard; it will not fit standard desktop UDIMM slots.

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