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Green circuit board with black memory chips and gold edge connector

A-Tech

A-Tech 4GB DDR4 2666MHz CL19 260-Pin SODIMM 1Rx16 Laptop RAM

SKU CH-316Q-36X92

4GB DDR4 2666MHz CL19 260-pin SODIMM laptop memory for compatible Hynix replacements

  • Total capacity4 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Recommended forAMD & Intel Compatible
  • Boosts multitasking with 4 GB DDR4 2666 MHz speed
  • Runs cool at standard 1.20 V DDR4 voltage
  • Fits laptops using 260-pin SODIMM slots
  • Tested for reliable CL19 unbuffered operation
  • Direct replacement for Hynix 851 series modules

4GB DDR4 2666MHz laptop module

This 4GB DDR4 SODIMM runs at 2666MHz with CL19 latency and 1.20V operation. It is built for notebooks and all-in-one systems that accept 260-pin unbuffered non-ECC memory. The single-rank 1Rx16 organisation keeps the electrical load light on the memory controller.

260-pin SO-DIMM form factor

The standard 260-pin edge connector fits directly into DDR4 SODIMM slots without adapters or brackets. Unbuffered design means the module connects straight to the system bus, so installation is a simple press-in action. No ECC circuitry is present, matching the requirements of most consumer laptops.

Replaces specific Hynix part numbers

This module is a compatible equivalent for Hynix HMA851S6CJR6N-VK, HMA851S6DJR6N-VK and HMA851S6JJR6N-VK, letting owners of those systems restore or expand memory with a direct drop-in part. Lifetime warranty coverage and US-based technical support are included with the purchase.

How it compares

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

Price $32.99
Cheaper than about 70% of the 2,079 comparable items (median $70.99).
Total capacity 4 GB
Lower than about 80% of the 1,886 comparable items (median 16 GB).
Price per GB $8.25 per GB
Pricier than about 71% of the 1,886 comparable items (median $5.94 per GB).

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Specifications

Product
Brand nameA-Tech
Total capacity4 GB
Product type260-Pin DDR4 SO-DIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Memory
CAS latencyCL19
ECC supportNo
Buffer typeUnbuffered
Power
Rated voltage1.2 V
Compatibility
Recommended forAMD & Intel Compatible

Questions about this item

What DDR4 standard does the 2666 MHz SODIMM follow and what PC4 rating does it carry?

It follows the DDR4 2666 standard and carries a PC4-21300 rating.

What physical slot and pin count does this 260-pin SO-DIMM require?

It requires a standard 260-pin DDR4 SO-DIMM slot in a laptop or all-in-one system.

How do you install the module and which step is often missed?

Power off the laptop, open the memory door, insert the module at an angle until the gold contacts are hidden, then press down firmly until both side clips click into place.

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