HP Compaq 6530b 14.1"Re certified Laptop - Intel Core 2 Duo 2.8, 4GB, 250GB, DVD-RW, Win 7 Professional 64-Bit. For sale is a Re certified HP 6530b Laptop. It features all the features and benefits of a business laptop. This includes but is not limited to efficiency, reliability, security, stability, and durability. At such an affordable price, it just makes sense.