The HP ProBook 6550b is an older business laptop (circa 2010s) with a 15.6-inch display (1600x900), Intel Core i5 processors (e.g., i5-M520), integrated Intel HD Graphics or ATI Mobility Radeon HD 540v, up to 8 GB RAM, and often came with Windows 7, but can be upgraded to Windows 10. It offers ports such as VGA, HDMI, DisplayPort, and USB 2.0, as well as a serial port (COM port), and is a robust, used device for basic tasks.
