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Green rectangular SO-DIMM module with gold edge connectors and black chips

SK hynix

SK hynix HMA851S6DJR6N-VK 4 GB DDR4 2666 laptop RAM

SKU CH-BR8R-WJ4RZ MPN HMA851S6DJR6N-VK

4 GB DDR4 2666 MHz SO-DIMM laptop memory with CL19 latency and 1.20 V operation

  • Capacity4GB
  • Type260-Pin DDR4 SO-DIMM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.20V
  • ECCNo
  • 4 GB capacity upgrades everyday laptop performance
  • 2666 MHz DDR4 speed handles multitasking smoothly
  • CL19 latency keeps data access responsive
  • 20 V operation reduces power draw
  • 260-pin SO-DIMM fits standard laptop slots

Ideal for laptop memory upgrades

This SK hynix SODIMM adds 4 GB of DDR4 memory to a notebook. It suits owners who need a straightforward capacity increase for everyday tasks. Buyers who want more storage or require ECC error correction should look elsewhere.

Runs at DDR4 2666 with CL19 timing

The module operates at 2666 MT/s (PC4-21300) with a CAS latency of 19. This single speed rating determines whether the part matches the system's memory controller. No other frequency or latency figures apply.

Draws 1.20 V with no active cooling needed

Standard DDR4 voltage keeps power draw low and eliminates the need for a fan or heatsink. The unbuffered design runs silently in normal use. Thermal output stays minimal inside the laptop chassis.

商品特色

  • 4 GB capacity upgrades everyday laptop performance
  • 2666 MHz DDR4 speed handles multitasking smoothly
  • CL19 latency keeps data access responsive
  • 20 V operation reduces power draw
  • 260-pin SO-DIMM fits standard laptop slots

商品規格

BrandHYNIX
SeriesSODIMM Laptop Memory
ModelHMA851S6DJR6N-VK
Capacity4GB
Type260-Pin DDR4 SO-DIMM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.20V
ECCNo
Buffered/RegisteredUnbuffered

商品問答

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

The module runs at 2666 MT/s, delivering a peak transfer rate of 21300 MB/s when the system memory controller operates at that frequency.

What does the PC4-21300 designation cap in practice?

PC4-21300 specifies a maximum bandwidth of 21300 MB/s at 2666 MT/s; the laptop's memory controller will not exceed this rate.

Will the 260-pin SO-DIMM fit my laptop's memory slot?

The module uses the standard 260-pin DDR4 SO-DIMM form factor, which fits any laptop slot designed for DDR4 SO-DIMM memory.

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