A 19.5V Sony power adapter is a power supply for Sony devices, typically an AC adapter for laptops or TVs, with an output voltage of \(19.5V\) and a common barrel connector size of \(6.5\text{mm}\times 4.4\text{mm}\). These adapters are designed to convert \(100-240V\) universal input voltage to the required output, and often feature multiple safety protections,