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Green circuit board with black memory chips and gold edge contacts

Computer Memory Solutions

Computer Memory Solutions CM5126410600SODRH 4GB DDR3 1333MHz CL7 1.5V 2Rx8 SODIMM memory upgrade

SKU CH-3XW5-DB36Z

4GB DDR3 1333MHz SODIMM module with CL7 timing and 1.5V operation for compatible Toshiba Portege ultrabooks

  • Total capacity4 GB
  • Rated speedDDR3 1333 (PC3 10600)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL7
  • Memory timings7-7-7
  • Rated voltage1.5 V
  • Guaranteed fit for Portege Z830, Z835 models
  • 4 GB DDR3-1333 CL7 boosts responsiveness
  • Low 1.5 V DDR3 cuts power draw
  • Unbuffered 2Rx8 layout ensures stable operation
  • 204-pin SODIMM drops straight into laptop slot

System-Specific SO-DIMM for Toshiba Portege

This 4 GB DDR3 module is built to the exact pin-out and timing required by Toshiba Portege Z830-S8302, Z835-ST8305 and Z835-P330 ultrabooks. It arrives as a single 204-pin unbuffered stick rated at 1333 MHz with CL7 latency and 1.5 V operation.

Buyers upgrading the listed Portege models

The part matches the factory socket and chipset validation for those three SKUs only. It will not serve systems that demand ECC, registered modules, a different voltage or a higher density per slot.

CL7 timing at DDR3-1333

The 7-7-7 cycle specification is the critical parameter that decides compatibility with the Portege memory controller; modules with looser timings may fail to train at the rated speed.

How it compares

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

Price $19.99
Cheaper than about 91% of the 21,161 comparable items (median $397.99).
Total capacity 4 GB
Lower than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $5.00 per GB
Cheaper than about 77% 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 nameCM5126410600SODRH
Total capacity4 GB
Product type204-Pin DDR3 SO-DIMM
Performance
Rated speedDDR3 1333 (PC3 10600)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL7
Memory timings7-7-7
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.5 V
Compatibility
Compatible systemsToshiba Portege Z830-S8302, Z835-St8305, Z835-P330
In the box
Included items1 Memory RAM Stick

Questions about this item

Should I choose the single 4GB stick or look for a larger capacity for my Portege Z830-S8302?

The module is a single 4GB stick; the system accepts up to 6GB total across its sockets, so adding this leaves room for one more module if a second slot is free.

What does the 1333MHz rating deliver in my laptop?

The stick runs at DDR3-1333 with CL7 timing at 1.5V, giving the rated PC3-10600 data rate when the memory controller operates at that speed.

Will the 204-pin DDR3 SODIMM interface work without BIOS changes?

It is a standard 204-pin unbuffered non-ECC DDR3 SODIMM, the native format for the listed Portege models, so it installs directly.

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