: Check the back or bottom of the physical unit. Many modern devices print a unique default password (often labeled as "Pwd" or "Key" ) on a sticker near the serial number.
The "Key ID" on a PS300B system refers to a unique, factory-encoded identifier associated with a physical or digital security key. Unlike standard USB drives or simple password tokens, the PS300B’s Key ID is often tied to hardware-level authentication. ps300b key id password top