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Green circuit board with black memory chips and gold edge connectors

SK hynix

SK hynix HMAA4GS6MJR8N-VK 32GB DDR4 2666 CL19 260-pin laptop RAM

SKU CH-X66H-Z36QC MPN HMAA4GS6MJR8N-VK

32 GB DDR4 laptop memory running at 2666 MT/s with CL19 latency and 1.2 V operation

  • Capacity32GB
  • Type260-Pin DDR4 SO-DIMM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.20V
  • ECCNo
  • High 32 GB capacity for demanding multitasking
  • DDR4 2666 speed for responsive system performance
  • Low 1.20 V voltage reduces power draw
  • CL19 latency supports quick data access
  • 260-pin SO-DIMM fits standard laptop slots

32 GB DDR4 SO-DIMM for laptop upgrades

This single module delivers 32 GB of DDR4 memory in the standard 260-pin SO-DIMM form factor. It is built for notebooks that accept unbuffered, non-ECC DDR4 and need a straightforward capacity increase.

Speed and latency: DDR4 2666 CL19

The module runs at DDR4 2666 with a CAS latency of CL19 (PC4-21300). If your laptop requires a different speed grade or tighter timings, this stick will not match the specification.

Tool-free slot installation

Insert the module at the usual angle until the side clips click; no screws or thermal pads are involved. The most common issue is a BIOS that does not recognise the full 32 GB density, so verify the maximum supported capacity per slot before buying.

Highlights

  • High 32 GB capacity for demanding multitasking
  • DDR4 2666 speed for responsive system performance
  • Low 1.20 V voltage reduces power draw
  • CL19 latency supports quick data access
  • 260-pin SO-DIMM fits standard laptop slots

Specifications

BrandSK hynix
SeriesSODIMM Laptop Memory
ModelHMAA4GS6MJR8N-VK
Capacity32GB
Type260-Pin DDR4 SO-DIMM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.20V
ECCNo
Buffered/RegisteredUnbuffered

Questions about this item

What does the 2666 speed rating mean once the module is installed in a laptop?

The module runs at DDR4-2666 with CL19 latency at 1.20V; the laptop's memory controller determines the final operating speed.

What does the PC4-21300 designation cap in practice?

PC4-21300 is the JEDEC label for DDR4-2666; the laptop's BIOS and chipset set the actual data rate.

What does the 260-pin SO-DIMM form factor need to fit in a laptop?

A standard DDR4 SO-DIMM slot with 260 contacts; the module is unbuffered and non-ECC.

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