![8GB [2x4GB] DDR3-1333 RAM Memory Upgrade Kit for The Compaq HP Probook 4520s (WZ254UT#ABA) (Genuine A-Tech Brand) at Amazon.com 8GB [2x4GB] DDR3-1333 RAM Memory Upgrade Kit for The Compaq HP Probook 4520s (WZ254UT#ABA) (Genuine A-Tech Brand) at Amazon.com](https://m.media-amazon.com/images/I/71z2T6h7ikL._AC_UF894,1000_QL80_.jpg)
8GB [2x4GB] DDR3-1333 RAM Memory Upgrade Kit for The Compaq HP Probook 4520s (WZ254UT#ABA) (Genuine A-Tech Brand) at Amazon.com
![parts-quick ( 1 X 4GB) Memory for HP ProBook 470 G3, 470 G4, 470 G5 DDR4-2400 SoDIMM Upgrade - Walmart.com parts-quick ( 1 X 4GB) Memory for HP ProBook 470 G3, 470 G4, 470 G5 DDR4-2400 SoDIMM Upgrade - Walmart.com](https://i5.walmartimages.com/asr/c6376238-8e3d-497d-ab11-cd0de6ca2d0a.925373450df2312753c22b5534e23504.jpeg)
parts-quick ( 1 X 4GB) Memory for HP ProBook 470 G3, 470 G4, 470 G5 DDR4-2400 SoDIMM Upgrade - Walmart.com
![How to Upgrade HP ProBook 450 G2 Ram | Laptop Memory Upgrade Guide - YouTube | Memory upgrade, Laptop memory, Probook How to Upgrade HP ProBook 450 G2 Ram | Laptop Memory Upgrade Guide - YouTube | Memory upgrade, Laptop memory, Probook](https://i.pinimg.com/736x/31/39/e1/3139e1ff91adb55564022505b6922669.jpg)
How to Upgrade HP ProBook 450 G2 Ram | Laptop Memory Upgrade Guide - YouTube | Memory upgrade, Laptop memory, Probook
![Memory RAM | 16GB Kit (2x8GB) - HP - HPE ProBook 470 G0 - (OEM-# Dual-Channel Memory Kit (2x H6Y77AA)) - 1600MHz, Unbuffered, 1,35V Memory RAM | 16GB Kit (2x8GB) - HP - HPE ProBook 470 G0 - (OEM-# Dual-Channel Memory Kit (2x H6Y77AA)) - 1600MHz, Unbuffered, 1,35V](https://www.compuram.biz/bilder/produkte/ram/ddr3_so-dimm_2er-f2.jpg)
Memory RAM | 16GB Kit (2x8GB) - HP - HPE ProBook 470 G0 - (OEM-# Dual-Channel Memory Kit (2x H6Y77AA)) - 1600MHz, Unbuffered, 1,35V
![4GB Memory Upgrade for HP ProBook 640 G1 DDR3L 1600MHz PC3L-12800 SODIMM RAM (PARTS-QUICK Brand) at Amazon.com 4GB Memory Upgrade for HP ProBook 640 G1 DDR3L 1600MHz PC3L-12800 SODIMM RAM (PARTS-QUICK Brand) at Amazon.com](https://m.media-amazon.com/images/I/61UYUQz-ppL._AC_UF894,1000_QL80_.jpg)