A-Tech 8GB Module for HP ProBook 640 G1 Laptop & Notebook Compatible DDR3/DDR3L PC3-12800 1600Mhz Memory Ram (ATMS322417B12351X1) at Amazon.com
Amazon.com: Shellman Case Cover for HP Probook 640 G8 14 inch,PU Leather Protective Hard Shell Case Cover Compatible with HP Probook 640 G8 14" Laptop Accessories,Black : Electronics
Amazon.com: HP Probook 640 G2 14 inches HD, Core i5-6300U 2.4GHz, 16GB RAM, 512GB Solid State Drive, Windows 10 Pro 64Bit (Renewed) : Electronics
Amazon.com: HP ProBook 640 G1 Intel i5-4200M 2.50GHz 8GB RAM 128GB SSD Windows 10 Pro (Renewed) : Electronics
HP ProBook 640 G1 14in Notebook PC - Intel Core i5-4300M 2.6GHz 8GB 320GB HDD Windows 10 Professional (Renewed)
HP ProBook 640 G1 - 14" - Core i5 4200M - Windows 7 Pro 64-bit / 8 Pro downgrade - 4 GB RAM - 500 GB HDD
HP ProBook 640 G1 14in Laptop, Core i5-4300M 2.6GHz, 8GB Ram, 256GB SSD, DVDRW, Windows 10 Pro 64bit, Webcam (Renewed)
Amazon.com: SCREENARAMA New Screen Replacement for HP Probook 640 G1, FHD 1920x1080, IPS, Glossy, LCD LED Display with Tools : Electronics
Amazon.com: 1TB 2.5" Laptop Hard Drive for HP 245 G1 Notebook PC, 245 G3 Notebook PC, 246 G1 Notebook PC, 250 G1 Notebook PC : Electronics
Keyboard Cover for 14" HP ProBook 440 445 G5 G6 G7 14, HP ProBook 430 G5, HP ProBook x360 440 G1 14", HP ProBook 640 G4 G5 14" Notebook Skin, Ombre Purple&Pink
HP ProBook 640 G1 14in Notebook PC - Intel Core i5-4300M 2.6GHz 8GB 320GB HDD Windows 10 Professional (Renewed)
New Keyboard Replacement for HP ProBook 640 G1 645 G1 Keyboard US Backlit with Frame US
Amazon.com: BRIGHTFOCAL New Screen Replacement for HP Probook 640 G1 14.0" Full-HD FHD 1920 x 1080 1080p LED LCD Screen Display : Electronics