4GB 2X2GB RAM Memory for Compaq HP Business Notebooks Business Notebook 6730b Black Diamond Memory Module DDR2 SO-DIMM 200pin PC2-6400 800MHz Upgrade - Walmart.com
Memory RAM | 8GB Kit (2x4GB) - HP - HPE HP Compaq 6730b - - 800MHz
2GB SODIMM For HP Compaq 6730b 6735s HP 6530b 6530s 6535b 6535s 6730b Ram Memory | eBay
HP Compaq 6730b Notebook 2nd memory module under keyboard - YouTube
HP 6730b Windows 10 Pro Laptop Netbook PC Intel Core 2 Duo 4GB 160GB