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Green 288-pin DDR4 ECC UDIMM module with black chips and gold contacts

OWC

OWC 8GB DDR4 2666 ECC UDIMM CL19 1.2V 1Rx8 288-pin Synology RS4017xs+ RS4021xs+ memory upgrade

SKU CH-GQ7D-C08DW

8GB DDR4 2666MHz ECC unbuffered UDIMM for Synology RS4017xs+ and RS4021xs+ NAS systems

  • Capacity8GB
  • Type288-Pin DDR4 ECC UDIMM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.2V
  • ECCYes

Capacity 8GB

  • 8GB capacity expands Synology RackStation memory for heavier workloads
  • DDR4 2666MHz CL19 speed matches system specs for stable operation
  • ECC unbuffered design protects data integrity in NAS environments
  • 2V low voltage reduces power draw and heat output
  • JEDEC compliant module ensures warranty-safe upgrade for RS4017xs+ and RS4021xs+

Targeted Synology NAS memory upgrade

This 8GB DDR4 ECC UDIMM is built for Synology RackStation RS4017xs+ and RS4021xs+ systems. It adds error-correcting capacity to NAS, FlashStation or NVR DVA appliances that require unbuffered 288-pin modules running at 1.2V.

DDR4 2666 runs at the speed of the slowest module

The module is rated for PC4-21300 at CL19 and will down-clock to 2133MHz or 2400MHz when mixed with slower DIMMs. Total system bandwidth is limited by the lowest common speed across all populated slots.

Confirm slot count and maximum capacity before

Verify how many UDIMM slots your RackStation model exposes and the total memory ceiling the firmware supports. Systems that require registered or load-reduced DIMMs cannot use this unbuffered module.

Puntos fuertes

  • 8GB capacity expands Synology RackStation memory for heavier workloads
  • DDR4 2666MHz CL19 speed matches system specs for stable operation
  • ECC unbuffered design protects data integrity in NAS environments
  • 2V low voltage reduces power draw and heat output
  • JEDEC compliant module ensures warranty-safe upgrade for RS4017xs+ and RS4021xs+

Especificaciones

BrandOWC
Part Number2E6D41R808GB
Capacity8GB
Type288-Pin DDR4 ECC UDIMM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.2V
ECCYes
Buffered/RegisteredUnbuffered
Rank1Rx8
Heat SpreaderNo
Compatible SystemSynology RackstationRS4017xs+
Synology RackstationRS4021xs+

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Preguntas sobre este artículo

Should I pick the 8 GB DDR4 2666 CL19 1Rx8 module or a 2Rx8 alternative for my Synology RS4017xs+?

This module is a single 8 GB 1Rx8 stick; add one to fill an empty slot or pair two for dual-channel bandwidth on the RS4017xs+ and RS4021xs+.

What does the 2666 MHz rating deliver inside a Synology RackStation?

The PC4-21300 2666 MHz CL19 1.2 V ECC UDIMM runs at the NAS-rated speed, correcting single-bit errors while keeping latency at 19 cycles for responsive file and VM workloads.

Is the 288-pin DDR4 ECC UDIMM limited by the Synology memory controller?

The 288-pin DDR4 ECC unbuffered DIMM operates at the platform's supported 2666 MHz ceiling and will down-clock to 2400 MHz or 2133 MHz if the system requires it.

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