8GB DDR4 PC4-17000 2133MHz 260-pin SODIMM. 16GB DDR4 PC4-17000 2133MHz 260-pin SODIMM. 8GB DDR4 PC4-19200 2400MHz 260-pin SODIMM. 16GB DDR4 PC4-19200 2400MHz 260-pin SODIMM. This upgrade will NOT invalidate your system warranty.
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