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And you should check if your motherboard supports 12 GB RAM capacity. . However before choosing the data rate you need to check whether your PC is compatible with your desired data rate or not.
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. Samsung original 4GB 204-pin SODIMM DDR3 PC3L-12800 ram memory module for laptop M471B5173EB0-YK0. Free shipping for many products. Boost Your Computers Memory with 4 GB DDR3 SDRAM.