Computer Memory Solutions 4GB DDR3L 1600 SODIMM Sony Vaio VPCEB42EG VPCEA43FB VPCEA43FX VPCEA44FX

System-Specific DDR3L SODIMM for Sony Vaio

This 4 GB DDR3L SODIMM is built for the Sony Vaio VPCEB42EG, VPCEA43FB, VPCEA43FX and VPCEA44FX laptops. It fits the 204-pin slot and runs at 1.35 V, matching the factory voltage requirement. The module is unbuffered, non-ECC and uses a single-rank 1Rx8 organisation with Major Brand Chipset components.

Sustained-load behaviour with CL11 timing

At 1600 MHz the stick operates at PC3L 12800 bandwidth with 11-11-11 timings. CAS latency 11 keeps access consistent during long sessions such as video encoding or large spreadsheet recalculation. The single 4 GB rank feeds the controller without interleaving delays, so throughput remains stable once caches are warm.

Thermals, noise and power draw in normal use

Running at the standard 1.35 V keeps power draw low and eliminates the need for a heat spreader. The module produces no audible noise and adds minimal heat to the laptop chassis. The platform supports a maximum of 8 GB across two sockets, so a second identical stick can be added later if the 64-bit operating system is present.