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Green rectangular circuit board with gold edge connectors and black memory chips

A-Tech

A-Tech 4GB DDR3L 1333MHz CL9 1.35V SODIMM laptop RAM

SKU CH-JYKG-KYBC1

4GB DDR3L 1333MHz CL9 1.35V SODIMM laptop memory upgrade for compatible notebooks

  • Capacity4GB
  • Type204-Pin DDR3 SO-DIMM
  • SpeedDDR3L 1333 (PC3L 10600)
  • CAS LatencyCL9
  • Voltage1.35V
  • ECCNo
  • 4GB capacity lets you run more applications at once
  • 1333 MHz DDR3L speed improves data throughput
  • Low 1.35 V DDR3L voltage reduces power draw
  • 204-pin SO-DIMM form factor fits standard laptop slots
  • Tested replacement for Corsair CMSO4GX3M1A1333C9 ensures compatibility

4GB DDR3L 1333MHz SODIMM

This 4GB DDR3L module runs at 1333MHz with CL9 latency and 1.35V operation. It uses the 204-pin SO-DIMM form factor for laptop, notebook and all-in-one computers. The unbuffered non-ECC design suits standard consumer platforms. It is a compatible replacement for the Corsair CMSO4GX3M1A1333C9 part.

DDR3L voltage and speed limits

DDR3L memory operates at 1.35V, lower than standard DDR3 at 1.5V, though many DDR3L modules can run at the higher voltage if the system requires it. The 1333MHz speed rating (PC3-10600) sets the maximum data rate; the system will downclock the module if the memory controller supports only a lower frequency. CAS latency of CL9 defines the timing at this speed.

Check laptop memory specs before ordering

Verify that your laptop or all-in-one accepts 204-pin DDR3L SO-DIMM modules and supports 1.35V operation. Confirm the maximum capacity per slot and the total memory limit for your specific model. Ensure the system does not require ECC or registered memory, as this module is unbuffered non-ECC. Check the number of available slots to plan your upgrade correctly.

Highlights

  • 4GB capacity lets you run more applications at once
  • 1333 MHz DDR3L speed improves data throughput
  • Low 1.35 V DDR3L voltage reduces power draw
  • 204-pin SO-DIMM form factor fits standard laptop slots
  • Tested replacement for Corsair CMSO4GX3M1A1333C9 ensures compatibility

Specifications

BrandA-Tech
SeriesCompatible Replacement for Corsair
ModelCMSO4GX3M1A1333C9
Capacity4GB
Type204-Pin DDR3 SO-DIMM
SpeedDDR3L 1333 (PC3L 10600)
CAS LatencyCL9
Voltage1.35V
ECCNo
Buffered/RegisteredUnbuffered
Heat SpreaderNo
FeaturesCMSO4GX3M1A1333C9
Recommend UseCompatible Replacement for Corsair CMSO4GX3M1A1333C9

Questions about this item

Should I choose the 4 GB DDR3L 1333 MHz CL9 1.35 V module or a different capacity?

This listing is for a single 4 GB stick; if your laptop has two slots and supports 8 GB total, adding a second identical module will give you dual-channel bandwidth.

What does the 1333 MHz rating actually deliver inside my laptop?

The module runs at 1333 MHz with CL9 timings at 1.35 V, providing PC3L-10600 bandwidth for faster application loading and smoother multitasking.

Is the 204-pin DDR3L SO-DIMM interface compatible with my notebook?

It uses the standard 204-pin DDR3L SO-DIMM form factor, so it fits any laptop slot designed for DDR3L 1.35 V memory.

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