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Green circuit board with black memory chips, 262-pin DDR5 SODIMM form factor, no heat spreader

A-Tech

A-Tech 16GB DDR5 4800MHz CL40 262-Pin SODIMM for Hynix HMCG78AEBSA HMCG78MEBSA laptop RAM

SKU CH-YCP7-RRQP3

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

  • Total capacity16 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeUnbuffered
  • Recommended forCompatible Replacement for Hynix HMCG78AEBSA, HMCG78MEBSA
  • 16 GB DDR5 4800 MHz CL40 boosts multitasking speed
  • 262-pin SODIMM fits Hynix HMCG78AEBSA and HMCG78MEBSA slots
  • 10 V standard voltage keeps power draw low
  • Non-ECC unbuffered design ensures broad laptop compatibility
  • Rigorously tested modules deliver dependable performance

Compatible 16GB DDR5 SO-DIMM

This 16GB DDR5 module replaces Hynix HMCG78AEBSA and HMCG78MEBSA parts in laptops, notebooks and all-in-one PCs. It runs at 4800MHz with CL40 latency and standard 1.10V DDR5 voltage. The unbuffered, non-ECC design fits 262-pin SO-DIMM slots without extra configuration.

Sustained workload behaviour

Rated at 4800MHz PC5-38400, the module maintains its rated speed under continuous multi-tasking and heavy application loads. Standard DDR5 voltage keeps power draw predictable during extended sessions. Quality assurance testing verifies stability for prolonged use.

Physical fit and daily use

The bare 262-pin SO-DIMM has no heat spreader, so it slides into tight laptop sockets without clearance issues. Unbuffered, non-ECC layout matches factory memory for direct replacement. Verify your system supports DDR5 SO-DIMM before ordering.

How it compares

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

Price $182.99
Pricier than about 76% of the 2,079 comparable items (median $70.99).
Total capacity 16 GB
Typical for this category: the median of 1,886 items is 16 GB.
Price per GB $11.44 per GB
Pricier than about 85% 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 nameHMCG78AEBSA, HMCG78MEBSA
Total capacity16 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 HMCG78AEBSA, HMCG78MEBSA

Questions about this item

How much heat and power does the 16GB DDR5 4800MHz CL40 module draw when running continuously?

It operates at the standard DDR5 voltage of 1.1V with no heat spreader, so thermal output stays low during all-day workloads.

What must my laptop already have to accept this 262-pin SODIMM?

Your system needs a DDR5-compatible SO-DIMM slot and a memory controller that supports 4800 MT/s at CL40 latency.

Will this 1Rx8 unbuffered stick work alongside an existing Hynix HMCG78AEBSA module?

Yes, it is built as a direct compatible replacement for both HMCG78AEBSA and HMCG78MEBSA part numbers.

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