New 4GB DDR3 1600Mhz PC3-12800S SO-Dimm 204pin 1.35V CL11 SDRAM Laptop Memory
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laptop charger for your Asus X55A laptop series notebooks as well as many of Asus laptop range, just check underneath your laptop for input rating as this should state 19v 3.42a and would mean this is the power charger you need.