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Green 260-pin DDR4 ECC SODIMM module, black chips, no heat spreader

OWC

OWC 8GB DDR4 2666MHz ECC SODIMM 1Rx8 DS923+ memory upgrade

SKU CH-PBES-ZT525

8GB DDR4 2666MHz ECC SODIMM upgrades Synology DS923+ NAS with 1Rx8 unbuffered memory at 1.2V CL19

  • Total capacity8 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Memory rank1Rx8

Capacity 8GB

  • ECC protection guards data integrity in your NAS
  • 2666 MHz DDR4 speed matches DS923+ specs for stable operation
  • 8 GB capacity expands memory for heavier workloads
  • 2 V low voltage reduces heat and power draw
  • Backward compatible with 2400 MHz and 2133 MHz systems

8GB DDR4 ECC SODIMM for Synology DS923+

This single 8GB module upgrades the Synology DiskStation DS923+ with DDR4 2666MHz ECC memory. It uses a 260-pin SODIMM form factor running at 1.2V with CL19 latency. The unbuffered 1Rx8 design meets JEDEC standards for reliable NAS operation.

Ideal for DS923+ owners needing ECC reliability

This upgrade suits administrators expanding memory in a Synology DS923+ where error-correcting code is required for data integrity. Buyers with non-ECC platforms or systems requiring registered DIMMs should look elsewhere.

1Rx8 unbuffered ECC SODIMM at 2666MHz

The 1Rx8 unbuffered ECC configuration at DDR4 2666MHz determines compatibility with the DS923+ memory controller. Verify your NAS accepts unbuffered ECC SODIMMs before purchase.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $55.99
Cheaper than about 76% of the 21,161 comparable items (median $397.99).
Total capacity 8 GB
Lower than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $7.00 per GB
Cheaper than about 57% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number2C6D41R808 GB
Total capacity8 GB
Product type260-Pin DDR4 ECC SODIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Memory
CAS latencyCL19
ECC supportYes
Buffer typeUnbuffered
Memory rank1Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsSynology DiskStationDS923+

Other versions of this model

5 more in the same range

Questions about this item

Does the OWC 8GB DDR4 2666MHz ECC SODIMM arrive as a single stick or a kit, and are any tools needed for the DS923+ slot?

The upgrade consists of one 8GB 260-pin DDR4 ECC SODIMM. No extra modules, cables or tools are required; the stick inserts directly into the Synology DS923+ memory slot.

Should I choose the 1Rx8 2666MHz CL19 version or look for a different rank or speed for the DS923+?

This module matches the DS923+ specification: DDR4 2666MHz PC4-21300 CL19 1Rx8 ECC unbuffered at 1.2V. It also runs at 2400MHz and 2133MHz if the system downclocks.

What does the 2666MHz PC4-21300 rating actually deliver inside a DS923+ NAS?

The module operates at 2666MHz with CL19 latency, providing 8GB of ECC-protected capacity. The DS923+ memory controller sets the final throughput, and the stick will run at 2400MHz or 2133MHz if the system requires a lower speed.

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