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Green circuit board with black memory chips and gold edge connectors

Computer Memory Solutions

Computer Memory Solutions CM256648500SO 2GB DDR3 1066 SODIMM

SKU CH-2NVD-8MGR0

A 2 GB DDR3 SODIMM running at 1066 MHz with CL7 timing for Acer Aspire One D257 systems

  • Total capacity2 GB
  • Rated speedDDR3 1066 (PC3 8500)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL7
  • Memory timings7-7-7
  • Rated voltage1.5 V
  • 2GB capacity upgrades your Acer Aspire One D257 netbook
  • DDR3 1066 MHz speed matches PC3-8500 system specification
  • CL7 7-7-7 timing keeps latency low for responsive operation
  • 204-pin SODIMM form factor fits the single memory slot directly
  • 5 V unbuffered design works with standard laptop power limits

2GB DDR3-1066 SODIMM for Acer Aspire One D257

This 2GB DDR3 SO-DIMM runs at 1066 MHz with CL7 timing and 1.5V operation. It is built for the Acer Aspire One D257 with Atom N570 or N550 processors. The unbuffered, non-ECC module uses a single 1Rx8 rank and fits the 204-pin slot. Computer Memory Solutions guarantees compatibility with the listed models.

Replaces the factory 1GB module in a single socket

The Aspire One D257 ships with 1GB in its only memory slot, so upgrading requires removing that module and inserting this 2GB stick. The jump is worth it when the netbook feels sluggish with multiple browser tabs or office applications open. No other memory slots exist, so this module defines the final capacity.

Handles everyday browsing

At the system maximum of 2GB, the module covers typical light productivity and web use on the Atom platform. It runs out when heavier multitasking, modern web apps, or background updates push memory pressure beyond the 2GB ceiling. The single-socket design means no further expansion is possible.

How it compares

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

Price $8.99
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 $4.50 per GB
Cheaper than about 81% 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 Atom N570, N550
In the box
Included items1 Memory RAM Stick

Questions about this item

Will this 204-pin DDR3 SODIMM fit the memory slot in my Acer Aspire One D257?

Yes, the 204-pin DDR3 SODIMM form factor matches the single expansion socket in the Acer Aspire One D257 Atom N570 and N550 models.

Do I just snap the module in, or is there a specific way to seat the 204-pin SODIMM?

Insert the module at an angle until the gold contacts are fully hidden, then press down firmly until both side clips click; the common mistake is stopping before the clips engage.

Will I need to replace this 2GB module again if I want more memory later?

The system maximum is 2GB with one socket, so this module already reaches the limit; any future increase would require a different platform.

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