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Green circuit board with black memory chips and gold edge connector

Computer Memory Solutions

Computer Memory Solutions CM256646400SO 2GB DDR2 800MHz SODIMM for Toshiba Mini Notebook Nb250 Nb255

SKU CH-Z355-QE6A4

A 2 GB DDR2 800 MHz SODIMM module that upgrades compatible Toshiba Mini Notebook models to their maximum memory capacity

  • Capacity2GB
  • Type200-Pin DDR2 SO-DIMM
  • SpeedDDR2 800 (PC2 6400)
  • CAS LatencyCL6
  • Timing6-6-6
  • Voltage1.8V
  • 2 GB DDR2-800 MHz boosts multitasking on compatible Toshiba mini notebooks
  • CL6 6-6-6 timing at 1.8 V delivers stable system responsiveness
  • 200-pin SODIMM form factor fits Nb250 and Nb255 memory slots directly
  • Single 2 GB module enables maximum capacity upgrade in one step
  • Major-brand chipset with limited lifetime warranty ensures long-term reliability

Compatible DDR2 SODIMM for Toshiba Mini Notebook

This 2 GB module is built specifically for the Toshiba Mini Notebook Nb250 and Nb255 series. It suits owners of those netbooks who need a direct replacement or a single-stick upgrade to the supported maximum. Buyers with DDR3 variants of the same chassis cannot use this part.

DDR2 800 PC2-6400 200-pin specification

The decisive spec is the DDR2 800 MHz (PC2-6400) 200-pin SO-DIMM interface with CL6 timing at 1.8 V. Only systems designed for this exact DDR2 generation and pin count will accept the module. DDR3 versions of the Nb250 or Nb255 require a different memory type entirely.

Simple slot access with generation caution

Installation follows the usual SODIMM procedure: power off, open the memory door, align the notch and press until the clips latch. The common mistake is ordering this DDR2 stick for a Nb250 or Nb255 unit that shipped with DDR3; the notch position differs and the module will not seat.

商品特色

  • 2 GB DDR2-800 MHz boosts multitasking on compatible Toshiba mini notebooks
  • CL6 6-6-6 timing at 1.8 V delivers stable system responsiveness
  • 200-pin SODIMM form factor fits Nb250 and Nb255 memory slots directly
  • Single 2 GB module enables maximum capacity upgrade in one step
  • Major-brand chipset with limited lifetime warranty ensures long-term reliability

商品規格

BrandComputer Memory Solutions
ModelCM256646400SO
Capacity2GB
Type200-Pin DDR2 SO-DIMM
SpeedDDR2 800 (PC2 6400)
CAS LatencyCL6
Timing6-6-6
Voltage1.8V
ECCNo
Buffered/RegisteredUnbuffered
Rank2Rx8
ChipsetMajor Brand Chipset
Heat SpreaderNo
Compatible SystemToshiba Mini Notebook Nb250 Nb255
Package Content1 Memory RAM Stick

商品問答

What does the 800 MHz DDR2 rating mean for my Toshiba Mini Notebook Nb250 or Nb255?

The module runs at 800 MHz (PC2-6400) with CL6 timing, delivering the maximum DDR2 bandwidth supported by those notebooks.

How does the 200-pin SO-DIMM interface limit what I can install?

The 200-pin DDR2 SO-DIMM slot only accepts DDR2 modules; DDR3 or other generations will not fit or function.

Will this 2GB stick physically fit the memory slot in my Nb255?

Yes, it is a standard 200-pin DDR2 SO-DIMM (1.8 V, unbuffered, non-ECC) matching the factory slot dimensions.

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