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Green 260-pin DDR4 SO-DIMM with black chips, 16GB ECC module

SK hynix

SK hynix 16GB DDR4-2666 ECC SO-DIMM 2Rx8 CL19 1.2V

SKU CH-8RNR-1DYQJ

16 GB DDR4 ECC SO-DIMM running at 2666 MHz with CL19 latency for server and micro-server upgrades

  • Type260-Pin DDR4 SO-DIMM
  • ECC protects data integrity with built-in error correction
  • 16 GB capacity expands memory for demanding workloads
  • DDR4-2666 speed delivers 2666 MHz data rates
  • CL19 latency at 1.2 V balances performance and efficiency
  • 260-pin SO-DIMM form factor fits compatible micro servers and laptops

Synology-Certified 16 GB DDR4-2666 ECC SO-DIMM

This 16 GB DDR4-2666 ECC SO-DIMM carries Synology certification for the DS1621+ and similar micro-servers. It targets administrators who need validated error-correcting memory for ZFS or Btrfs volumes. The single 260-pin module delivers 16 GB at PC4-21300 speed with CL19 latency. Buyers who need non-ECC laptop SODIMMs or higher-frequency kits should look elsewhere.

Sustained-load behaviour with 2Rx8 organisation

The dual-rank 2Rx8 layout spreads accesses across sixteen DRAM chips, keeping per-chip current lower during long compile jobs or overnight backup windows. ECC single-bit correction and multi-bit detection run on every transaction, so silent data corruption is caught without software overhead. JEDEC-standard 1.2 V operation limits thermal rise in fanless chassis. Workloads that exceed 16 GB capacity will still swap regardless of rank count.

Straightforward 260-pin installation

The module inserts like any 260-pin SO-DIMM: align the key notch, press until the side clips latch. No BIOS tuning is required; the SPD programs 2666 MT/s at CL19 automatically. The most frequent issue is mixing this ECC stick with non-ECC modules, which disables error correction on many platforms. Another is populating a single slot in a dual-channel board, halving peak bandwidth.

Highlights

  • ECC protects data integrity with built-in error correction
  • 16 GB capacity expands memory for demanding workloads
  • DDR4-2666 speed delivers 2666 MHz data rates
  • CL19 latency at 1.2 V balances performance and efficiency
  • 260-pin SO-DIMM form factor fits compatible micro servers and laptops

Specifications

Type260-Pin DDR4 SO-DIMM

Questions about this item

Does the 1.2V DDR4-2666 module stay cool and quiet during continuous server workloads?

The module operates at the standard 1.2V DDR4 voltage with no moving parts, so it adds negligible heat and makes no noise in a DS1621+ or similar micro-server running all day.

What must my system provide for this 260-pin ECC SO-DIMM to function?

A DDR4 SO-DIMM slot that accepts 260-pin modules, supports ECC, and runs at 1.2V; the Synology DS1621+ is a certified platform.

Can I pair this 2Rx8 CL19 stick with the existing memory in my DS1621+?

Yes, the module is certified for the DS1621+ and will operate alongside the factory-installed DDR4-2666 ECC memory at the system's common speed and timing.

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