Can I mix a DDR3 4GB RAM (dual channel, 1333 MHz) and a DDR3 2GB RAM (single channel, 1333 MHz, and I have 4 memory slots)? - Quora
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Kingston KVR13S9S8/4 - Memoria RAM de 4 GB (1333 MHz DDR3 Non-ECC CL9 SODIMM 204-pin, 1.5V) : Amazon.es: Informática
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Samsung - Módulo de memoria RAM DDR3 SO-DIMM (4 GB, 1333 MHz, PC3 10600S, baja tensión) para portátil : Amazon.es: Informática
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