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Green rectangular DDR4 SODIMM module with black chips and gold contacts

SK hynix

SK hynix HMA81GS6CJR8N-VK 8GB DDR4 2666MHz CL19 SODIMM memory upgrade

SKU CH-7ZA9-ZTRA0

8 GB DDR4 2666 MHz CL19 SODIMM module for Precision 3550 and select Dell systems

  • Total capacity8 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • 8 GB capacity for smoother multitasking
  • DDR4 2666 MHz speed for responsive performance
  • CL19 latency with 1.2 V operation
  • 260-pin SODIMM fits compatible Dell laptops
  • Single-rank 1Rx8 design with major-brand chips

8GB DDR4 SODIMM for Dell Precision 3550

This SK hynix module delivers 8GB of DDR4 2666MHz memory in a 260-pin SODIMM form factor. It operates at 1.2V with CL19 latency and uses a single-rank 1Rx8 configuration. The unbuffered, non-ECC design matches the factory specification for the Precision 3550 mobile workstation.

Suits owners of listed Dell laptops and workstations

The module is validated for a wide range of Dell systems including Inspiron, Latitude, OptiPlex, Precision and G-series models listed in the compatibility data. Builders upgrading machines outside this validated list, or who require ECC error correction or registered buffering, should verify support before purchase.

Single specification that decides fit

The 260-pin DDR4 SODIMM interface at 2666MHz CL19 1.2V is the decisive factor; the slot must accept DDR4 SO-DIMMs at this speed and voltage with non-ECC unbuffered operation.

How it compares

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

Price $47.99
Cheaper than about 78% 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 $6.00 per GB
Cheaper than about 65% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameSK hynix inc.
Model nameHMA81GS6CJR8N-VK
Total capacity8 GB
Product type260-Pin DDR4 SO-DIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL19
ECC supportNo
Buffer typeUnbuffered
Memory rank1Rx8
Power
Rated voltage1.2 V
Compatibility
Compatible systemsPrecision 3550

Questions about this item

What comes in the box and do I need anything else to install the HMA81GS6CJR8N-VK SODIMM?

The box contains one 8 GB DDR4 2666 MHz CL19 260-pin SODIMM module; no extra parts or tools are required for installation in a compatible laptop or desktop.

Should I choose the 8 GB 2666 MHz CL19 version or a different capacity for my Precision 3550?

This module is an 8 GB single-rank 2666 MHz CL19 stick; select it when your Precision 3550 has a free SODIMM slot and the CPU supports DDR4 2666, otherwise match the capacity and speed already installed.

What does the 2666 MHz rating mean once the module is running in my Precision 3550?

The memory will operate at up to 2666 MT/s with CL19 latency at 1.2 V, delivering the standard DDR4 2666 bandwidth supported by the Precision 3550 platform.

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