We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Green circuit board with black memory chips and gold edge connector

Computer Memory Solutions

Computer Memory Solutions CM5126412800SODRH 4GB DDR3 1600MHz CL11 204-pin SODIMM memory upgrade

SKU CH-7Q1S-J7AH7

4 GB DDR3 1600 MHz CL11 SODIMM upgrade for Toshiba Satellite C855D models

  • Capacity4GB
  • Type204-Pin DDR3 SO-DIMM
  • SpeedDDR3 1600 (PC3 12800)
  • CAS LatencyCL11
  • Timing11-11-11
  • Voltage1.5V
  • 4GB capacity boosts multitasking on compatible Toshiba Satellite laptops
  • DDR3 1600MHz speed with CL11 timing delivers responsive performance
  • 204-pin SODIMM form factor fits C855D-11W and C855D-11X slots
  • 5V unbuffered non-ECC design ensures stable operation
  • Single 4GB module using major-brand chipset for reliable upgrades

System-Specific SODIMM for Toshiba Satellite

This 4 GB DDR3 SO-DIMM is built for the Toshiba Satellite C855D-11W and C855D-11X laptops. It delivers a straightforward memory upgrade for owners of those specific models who need to replace a failed module or add capacity to an available slot. The unbuffered, non-ECC design matches the original system requirements exactly.

204-pin DDR3 1600 MHz CL11 specification

The module runs at PC3-12800 speed with a CAS latency of 11 and operates at 1.5 V. These electrical and timing parameters are the single decisive match for the supported chipset. If your laptop requires a different voltage, pin count or speed grade, this stick will not function.

Direct slot installation with no heat spreader

Installation consists of opening the memory compartment, aligning the 204-pin edge connector and pressing until the retention clips engage. The low-profile design clears standard laptop chassis lids. The most common issue is inserting the module at an angle, which leaves the pins partially seated and prevents the system from booting.

Highlights

  • 4GB capacity boosts multitasking on compatible Toshiba Satellite laptops
  • DDR3 1600MHz speed with CL11 timing delivers responsive performance
  • 204-pin SODIMM form factor fits C855D-11W and C855D-11X slots
  • 5V unbuffered non-ECC design ensures stable operation
  • Single 4GB module using major-brand chipset for reliable upgrades

Specifications

BrandComputer Memory Solutions
ModelCM5126412800SODRH
Capacity4GB
Type204-Pin DDR3 SO-DIMM
SpeedDDR3 1600 (PC3 12800)
CAS LatencyCL11
Timing11-11-11
Voltage1.5V
ECCNo
Buffered/RegisteredUnbuffered
Rank2Rx8
ChipsetMajor Brand Chipset
Heat SpreaderNo
Compatible SystemToshiba Satellite C855D-11W, C855D-11X
Package Content1 Memory RAM Stick

Questions about this item

What does the DDR3-1600 rating mean once the module is installed?

The stick runs at DDR3-1600 (PC3-12800) with CL11 timing so the system reads and writes at that rated speed.

Which memory standard and pin count does this SODIMM use?

It is a 204-pin DDR3 SO-DIMM running at 1.5 V, unbuffered and non-ECC.

Will this stick fit the Toshiba Satellite C855D-11W and C855D-11X?

Yes — it is a 204-pin DDR3 SO-DIMM listed as compatible with those models.

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

More in System Specific Memory

Similar items

Same shelf, same checkout — eight coins and a 30-minute rate lock.