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Green circuit board with gold edge contacts and black memory chips

Computer Memory Solutions

Computer Memory Solutions CM256648500SO 2GB DDR3 8500 1066 NON ECC SODIMM memory upgrade

SKU CH-C1VN-ZQX4M

2GB DDR3 1066MHz SODIMM module upgrades compatible Toshiba Mini NB305 laptops

  • Total capacity2 GB
  • Rated speedDDR3 1066 (PC3 8500)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL7
  • Memory timings7-7-7
  • Rated voltage1.5 V
  • 2GB capacity adds responsive multitasking headroom
  • DDR3-1066 speed matches original system specification
  • CL7 latency keeps data access snappy
  • 5V operation runs cool without extra power
  • Guaranteed fit for Toshiba Mini NB305 series

Targeted 2GB DDR3 SO-DIMM for Toshiba Mini Nb305

This 204-pin DDR3 1066 module is built specifically for the Toshiba Mini Nb305-N442Bl, Nb305-N442Bn and Nb305-N442Rd notebooks. It suits owners of those models who need a single 2GB stick to replace a failed module or to reach the system's supported memory ceiling.

Straightforward notebook installation

The SO-DIMM inserts into the single memory socket on the Nb305 series after removing the bottom access panel. The unbuffered, non-ECC design matches the platform requirements exactly. The sole limitation is the single slot, so total capacity cannot exceed 2GB regardless of module density.

PC3-8500 CL7 1.5V specification confirms fit

The module runs at DDR3 1066 (PC3-8500) with CL7 7-7-7 timing at 1.5V in a 1Rx8 configuration. This precise speed, voltage and latency combination is what the Nb305 chipset expects; a different DDR3 speed grade or voltage would prevent the system from booting.

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 systemsToshiba Mini Nb305-N442Bl, Nb305-N442Bn, Nb305-N442Rd
In the box
Included items1 Memory RAM Stick

Questions about this item

How can I verify the CM256648500SO is running at the correct speed and timings after installing it in my Toshiba Mini NB305?

Check the memory frequency in BIOS or a system utility such as CPU‑Z; it should report 1066 MHz with CL7 7‑7‑7 timings at 1.5 V.

What comes in the package and is anything else required for installation?

The box contains one 2 GB 204‑pin DDR3 SO‑DIMM module; no additional parts or tools are needed to install it in the compatible Toshiba Mini models.

Which capacity version should I choose for a Toshiba Mini NB305‑N442BL that supports a maximum of 2 GB?

Select the 2 GB CM256648500SO module; it matches the system’s maximum supported memory and fits the single expansion socket.

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