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Green 262-pin DDR5 SODIMM module with black chips, no heat spreader

A-Tech

A-Tech 8GB DDR5 4800MHz SODIMM laptop RAM

SKU CH-MQSH-3NT5M

8 GB DDR5 4800 MHz laptop SODIMM module with CL40 latency and 1.1 V operation

  • Total capacity8 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeUnbuffered
  • Recommended forCompatible Replacement for Hynix HMCG66AEBSA, HMCG66MEBSA
  • 8GB capacity lets you run more apps simultaneously
  • DDR5 4800MHz speed accelerates data transfer rates
  • 1V standard voltage reduces power consumption
  • 262-pin SO-DIMM form factor fits compatible laptop slots
  • CL40 latency supports responsive system performance

8GB DDR5 SODIMM for Hynix replacement

This 8GB DDR5 4800MHz SODIMM replaces Hynix HMCG66AEBSA and HMCG66MEBSA modules in laptops, notebooks and all-in-one computers. It is built for users who need a direct, tested substitute for those specific part numbers and want to restore or expand system memory with a compatible module.

Fits 262-pin DDR5 slots at 1.10V

The module uses the standard 262-pin DDR5 SO-DIMM form factor and runs at the DDR5 baseline voltage of 1.10V. It is unbuffered and non-ECC, so it works in consumer platforms that accept standard DDR5 SODIMMs without registered or error-correcting memory requirements. No heat spreader is fitted, keeping the profile low for tight chassis.

8GB capacity with CL40 latency

The single 8GB rank delivers 4800MT/s bandwidth at PC5-38400 with CAS latency 40. It handles everyday multitasking, office applications and light content workloads comfortably. Systems that require more than 8GB total memory or lower latency timings will need additional or different modules.

How it compares

Measured against everything we stock in Laptop RAM, at today’s prices. Recalculated every night.

Price $98.99
Pricier than about 61% of the 2,079 comparable items (median $70.99).
Total capacity 8 GB
Lower than about 60% of the 1,886 comparable items (median 16 GB).
Price per GB $12.37 per GB
Pricier than about 89% of the 1,886 comparable items (median $5.94 per GB).

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Specifications

Product
Brand nameA-Tech
Product lineCompatible Replacement for Hynix
Model nameHMCG66AEBSA, HMCG66MEBSA
Total capacity8 GB
Product type262-Pin DDR5 SO-DIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Memory
CAS latencyCL40
ECC supportNo
Buffer typeUnbuffered
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Recommended forCompatible Replacement for Hynix HMCG66AEBSA, HMCG66MEBSA

Questions about this item

Will the CL40 latency become the bottleneck during sustained heavy workloads?

CL40 is the rated CAS latency at 4800 MHz; under continuous load the memory controller runs at this timing unless the system BIOS selects a slower JEDEC profile.

Does the module run hot or draw extra power during all-day operation?

The SODIMM operates at the standard DDR5 voltage of 1.10 V with no heat spreader, so thermal output and power draw stay within normal laptop limits.

What must my laptop already have for this 262-pin DDR5 stick to work?

Your system needs a DDR5-compatible SO-DIMM slot and a memory controller that supports 4800 MHz PC5-38400 non-ECC unbuffered memory.

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