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Amazon.com: HP ProBook 640 G3 14 Inch Laptop PC, Intel Core i5-7200U up to 3.1GHz, 8G DDR4, 256G SSD, VGA, DP, Windows 10 Pro 64 Bit Multi-Language Support English/French/Spanish(Renewed) : Electronics
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OFFTEK 16GB Replacement Memory RAM Upgrade for HP-Compaq ProBook 640 G3 (DDR4-19200) Laptop Memory at Amazon.com
Amazon.com: New Internal DVD CD Player Optical Drive Replacement, for HP ProBook 640 G3 650 G3 2017 Business Laptop, 8X DVD+/-RW DL DVD-RAM Writer Super Multi 24X CD-R M-Disc Burner : Electronics