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K54C Laptop motherboard for ASUS K54C X54C K54 K54Ly K54hR system board 2GB ram onboard REV 2.1 tested working - AliExpress
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A-Tech 4GB Module for ASUS X54C Laptop & Notebook Compatible DDR3/DDR3L PC3-12800 1600Mhz Memory Ram (ATMS393749B12034X1) at Amazon.com
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