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Green rectangular circuit board with gold contacts and black memory chips, no heat spreader

OWC

OWC 16GB DDR4 2666MHz ECC Registered RDIMM 2Rx8 CL19 1.2V 288-Pin Server Memory

SKU CH-Q9BW-PCNQZ

16GB DDR4 2666MHz ECC registered RDIMM for servers, workstations and NAS with CL19 latency and 1.2V operation

  • Capacity16GB
  • Type288-Pin DDR4 ECC RDIMM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.2V
  • ECCYes
  • ECC registered design protects data integrity in servers and workstations
  • 16 GB DDR4 2666 MHz CL19 module expands memory capacity for demanding workloads
  • 2 V operation reduces power draw and heat in dense configurations
  • 2Rx8 288-pin RDIMM form factor fits standard server DIMM slots
  • Backward compatible with 2133 MHz and 2400 MHz systems for flexible deployment

OWC 16GB DDR4 2666MHz ECC RDIMM

This 16GB DDR4 2666MHz ECC Registered RDIMM is built for servers, workstations and NAS systems that require registered memory with error correction. It operates at 1.2V with CL19 latency and a 2Rx8 rank configuration across 288 pins. The module contains no heat spreader and follows JEDEC-standard specifications for reliable operation in compatible enterprise platforms.

Replaces Supermicro MEM-DR416L-HL03-ER26

This module directly replaces Supermicro part numbers MEM-DR416L-HL03-ER26, MEM-DR416L-HL06-ER26 and MEM-DR416LD-ER26 with identical specifications. The upgrade is worth it when expanding capacity in a supported server chassis or refreshing older DDR4 2133MHz or 2400MHz configurations to the faster 2666MHz standard. It will not work in standard desktop computers and cannot be mixed with unbuffered memory.

DDR4 2666MHz registered ECC limits

The DDR4 2666MHz registered ECC standard caps module speed at 2666MHz with backward compatibility down to 2133MHz and 2400MHz. Registered buffering adds one clock cycle of latency versus unbuffered memory, which is required for signal integrity in multi-module server configurations. The 288-pin form factor physically prevents installation in desktop DDR4 slots that expect unbuffered UDIMMs. Mixing registered and unbuffered modules is not supported by the memory controller.

Punti di forza

  • ECC registered design protects data integrity in servers and workstations
  • 16 GB DDR4 2666 MHz CL19 module expands memory capacity for demanding workloads
  • 2 V operation reduces power draw and heat in dense configurations
  • 2Rx8 288-pin RDIMM form factor fits standard server DIMM slots
  • Backward compatible with 2133 MHz and 2400 MHz systems for flexible deployment

Caratteristiche tecniche

BrandOWC
Part Number2R6D42R816GB
Capacity16GB
Type288-Pin DDR4 ECC RDIMM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx8
Heat SpreaderNo

Domande su questo articolo

Does the 288-pin RDIMM fit a standard DDR4 server DIMM slot?

Yes, the module uses the JEDEC 288-pin DDR4 registered form factor used in servers, workstations and NAS systems.

What is the common mistake when installing this ECC registered memory?

Mixing it with unbuffered DIMMs or installing it in a standard desktop board that only accepts unbuffered memory.

When will this 16 GB DDR4 2666 MHz module need replacement?

Only if a hardware fault occurs; the limited lifetime warranty covers defects for the life of the product.

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