While Google Images works, the is the holy grail. You will find dedicated threads for 480x320 where users upload their *.SensorPanel files daily.
A "skin" is technically a layout file.
The 480x320 resolution is a popular choice for AIDA64 sensor panel skins, particularly for users with smaller screens or those who prefer a more compact layout. This resolution provides an optimal balance between visual detail and screen real estate, making it ideal for netbooks, laptops, or desktop monitors with lower resolutions. By downloading a 480x320 skin, users can: aida64 sensor panel skins download 480x320
