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

OWC

OWC 8GB DDR4 2666 CL19 ECC SODIMM 1Rx8 1.2V memory upgrade

SKU CH-6QX5-NHQD1

8 GB DDR4 ECC SODIMM at 2666 MHz CL19 for Synology RackStation RS1221+ and RS1221RP+

  • 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 NAS workloads
  • 2666 MHz DDR4 speed matches RS1221+ and RS1221RP+ specs
  • JEDEC and RoHS compliance keeps system warranty intact
  • 2 V operation reduces power draw and heat
  • Backward compatible with 2400 MHz and 2133 MHz slots

Targeted NAS Memory Upgrade

This OWC 8GB DDR4 2666 CL19 ECC SODIMM is built for Synology Rackstation RS1221+ and RS1221RP+ units. It adds 8GB of 1Rx8 unbuffered memory running at 1.2V. The module follows JEDEC PC4-21300 specifications for reliable operation in compatible micro servers and NAS systems.

Verify Slot And Configuration

Confirm your Rackstation has a free 260-pin SODIMM slot before ordering. The existing memory must be DDR4 ECC unbuffered; mixing registered or non-ECC modules is not supported. This stick is backwards compatible with 2400MHz and 2133MHz bus speeds, so it will clock down automatically if the system runs at those frequencies.

Single Module For Capacity Expansion

Install this 260-pin SODIMM directly into the NAS motherboard slot; no heat spreader is fitted, so clearance is minimal. The upgrade increases total system memory for heavier workloads such as virtualisation or large file caches. It leaves any remaining slots available for further matched modules if the chassis supports them.

How it compares

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

Price $52.99
Cheaper than about 77% 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 $6.62 per GB
Cheaper than about 60% 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 RackstationRS1221+
Synology RackstationRS1221RP+

Other versions of this model

5 more in the same range

Questions about this item

Does the module ship with a heat spreader or any tools, or must those be bought separately?

The 260-pin SODIMM has no heat spreader and no tools are included; it installs directly into the slot.

Which capacity and rank should I choose for a Synology RS1221+ or RS1221RP+ upgrade?

This is a single 8 GB 1Rx8 ECC unbuffered module; add one or two to match the NAS's two slots.

What does the 2666 MHz rating deliver once the stick is installed in the NAS?

It runs at PC4-21300 CL19 1.2 V and will down-clock to 2400 MHz or 2133 MHz if the system requires it.

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