---
id: mac-storage-basics.can-i-use-a-usb-flash-drive-for-time-machine
url: https://storagestudio.us/faq/mac-storage-basics/can-i-use-a-usb-flash-drive-for-time-machine
category: "Mac storage basics"
subcategory: "Time Machine basics"
question: "Can I use a USB flash drive for Time Machine?"
alt_questions:
  - "time machine usb stick"
  - "small drive for time machine"
  - "flash drive backup mac"
  - "time machine thumb drive"
short_answer: "Technically yes, but flash drives are usually small, slow for backups and wear faster. Use a dedicated hard drive or SSD of at least twice your data."
tags: ["time machine", "usb", "flash drive"]
related: ["https://storagestudio.us/faq/mac-storage-basics/how-big-should-a-time-machine-drive-be", "https://storagestudio.us/faq/mac-storage-basics/can-i-use-an-sd-card-for-extra-mac-storage"]
applies_to: "all"
last_reviewed: 2026-10-01
---

# Can I use a USB flash drive for Time Machine?

Technically yes, if it's big enough, but it's a poor choice: flash drives are usually small, slow at the many small writes backups involve, and wear out sooner. Your backups would keep very little history.

A dedicated external hard drive or SSD of at least twice your data is a much better Time Machine disk.