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Green printed circuit board with black memory chips and gold edge connector

Computer Memory Solutions

Computer Memory Solutions CM256648500SO 2GB DDR3 1066MHz SODIMM for Acer Aspire One D257-1818 memory upgrade

SKU CH-EARK-FWHZN

A 2 GB DDR3 SODIMM rated at 1066 MHz for upgrading an Acer Aspire One D257-1818 netbook

  • Total capacity2 GB
  • Rated speedDDR3 1066 (PC3 8500)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL7
  • Memory timings7-7-7
  • Rated voltage1.5 V
  • 2GB DDR3 SODIMM upgrades the Acer Aspire One D257-1818
  • 1066 MHz speed matches the PC3 8500 specification
  • CL7 7-7-7 timing delivers responsive memory access
  • 5 V unbuffered design fits the single expansion socket
  • 204-pin form factor ensures physical compatibility with the notebook

System-specific DDR3 SODIMM

This 2 GB DDR3 SODIMM is built for the Acer Aspire One D257-1818 netbook. It installs in the single 204-pin slot and restores the factory memory configuration. Owners of other Acer models or different laptop brands cannot use this module.

Sustained operation at 1066 MHz

The stick runs at PC3-8500 speed with CL7 7-7-7 timings and 1.5 V unbuffered voltage. Major-brand chips and a 1Rx8 organisation keep data rates steady during long work sessions. No heat spreader is fitted, so airflow in the chassis manages thermals.

Single-slot 2 GB limit

The Aspire One D257-1818 accepts a maximum of 2 GB across one socket, so this module fills the only upgrade path. Builders needing more capacity or a dual-channel pair must choose a different platform.

How it compares

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

Price $7.99
Cheaper than about 98% of the 21,161 comparable items (median $397.99).
Total capacity 2 GB
Lower than about 95% of the 20,941 comparable items (median 32 GB).
Price per GB $4.00 per GB
Cheaper than about 84% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM256648500SO
Total capacity2 GB
Product type204-Pin DDR3 SO-DIMM
Performance
Rated speedDDR3 1066 (PC3 8500)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL7
Memory timings7-7-7
ECC supportNo
Buffer typeUnbuffered
Memory rank1Rx8
Heat spreaderNo
Power
Rated voltage1.5 V
Compatibility
Compatible systemsAcer Aspire One D257-1818
In the box
Included items1 Memory RAM Stick

Questions about this item

How much power does the 1.5V DDR3 SODIMM draw when the Acer Aspire One D257-1818 runs all day?

The module operates at the standard DDR3 voltage of 1.5V and is unbuffered, so it adds only the typical low power draw of a single 2GB stick to the netbook's overall consumption.

What slot must the Acer Aspire One D257-1818 have free for this 204-pin upgrade to fit?

The netbook needs one vacant 204-pin DDR3 SO-DIMM socket; the system supports a maximum of 2GB across its single expansion slot.

Will this PC3-8500 CL7 stick work beside the original memory already in the D257-1818?

The laptop only has one memory socket, so the CMS module replaces whatever stick is installed rather than running alongside it.

More in Model-Specific Memory Upgrades

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