Look up flash drive or thumb drive in Wiktionary, the free dictionary.
USB drive may refer to:
- A USB flash drive or "thumb drive", a USB-connected computer storage using semiconductor non-volatile random-access memory
- A USB external drive, a hard drive fitted with a USB interface
- Secure Digital, a non-volatile memory card format
- CompactFlash, a flash memory mass storage device
- Memory Stick, a removable flash memory card format