Mouse, JTAG, serial connection to device under test, phone. Sometimes add a USB drive when taking measurements using test equipment. Useful either in the lab,

Mouse, JTAG, serial connection to device under test, phone. Sometimes add a USB drive when taking measurements using test equipment. Useful either in the lab, or at a customer's site. Which is why I only own Apple products for play. For my personal usage: mouse, USB drive, phone.