A-Tech 16GB Module for HP ProBook 640 G3 Laptop & Notebook Compatible DDR4 2666Mhz Memory Ram (ATMS322454A25832X1) at Amazon.com
parts-quick 4GB Memory for HP ProBook 640 G3 DDR4-2400 SODIMM Compatible RAM at Amazon.com
8GB Memory HP ProBook 640 G3 DDR4 RAM Upgrade
8GB DDR4-2400 (PC4-19200) SODIMM SR x8 Memory RAM for HP ProBook 640 G3
HP ProBook 640 G3 Intel Core i5 7200U 2.5GHz 8GB RAM 256GB SSD Windows 10 Pro | eBay
HP ProBook 640 G3 (7200U, Full HD) Business Notebook Review - NotebookCheck.net Reviews
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
HP PROBOOK 640 G3 INTEL CORE I5-7300U 2.60GHZ 8GB RAM **NO HD/ NO CADDIE | eBay
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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QuickSpecs HP ProBook 640 G3 Notebook PC
parts-quick 16GB Memory for HP ProBook 640 G3 DDR4 2400MHz SODIMM RAM at Amazon.com
HP ProBook 640 G3 Laptop 14" i5 6100U 2.4GHZ 8GB 500GB Win 10 Pro (Reused) - Walmart.com
HP ProBook 640 G3 Laptop 14" i5 6100U 2.4GHZ 8GB 500GB Win 10 Pro (Reused) - Walmart.com
Refurbished: HP ProBook 640 G3 Laptop, 14" LCD, Intel Core i3-7100U 2.4GHZ, 8GB DDR4 Ram, 500GB Hard Drive, Windows 10 Pro, Grade B Laptops / Notebooks - Newegg.com
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
HP ProBook 640 G3 Laptop 14" i5 6100U 2.4GHZ 8GB 500GB Win 10 Pro (Reused) - Walmart.com
OFFTEK 16GB Replacement Memory RAM Upgrade for HP-Compaq ProBook 640 G3 (DDR4-19200) Laptop Memory at Amazon.com
HP ProBook 640 G3 (7200U, Full HD) Business Notebook Review - NotebookCheck.net Reviews
ProBook 640 G3 i7-7600U | HP Laptops | Aventis Systems