The 9 Best USB Flash Drives of 2021

Best Overall: SanDisk Extreme PRO 128 GB Drive

3.5

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The SanDisk PRO gives you blistering speeds, offering 420 MB/s on the reading front and 380 MB/s on the writing end, which is 3–4x faster than what a standard USB 3.0 drive will offer. The sleek, aluminum casing is both super durable and very eye-catching, so you can bring it with you to your business meetings and look professional as well.

The onboard AES, 128-bit file encryption gives you top-of-the-line security for your sensitive files. That USB 3.1 connection is also backward compatible with USB 2.0, so you won’t hit any snags with an older computer. SanDisk is so confident in the functionality of this little drive, that they’ve even backed it with a full lifetime warranty in case any issues befall it. Finally, there’s a file backup system you can download called RescuePRO that will let you recover lost files if needed.

Best for Multiple Devices: SanDisk Ultra 128GB Dual Drive

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With a focus on design both aesthetically and functionally, the Ultra Dual Drive from SanDisk is fast, reliable, and features handy app support. One of its best features is the reversible connector that lets you swap between USB-C and USB-A, so it's a breeze to transfer data between your phone, tablet, laptop, or desktop, regardless of what ports are available.

The Dual Drive also takes full advantage of the USB 3.1 standard to deliver transfer speeds of up to 150MB/s, and even has a retractable plug so that it's easy to stow and carry (and the connector isn't exposed to the elements when retracted). There's even an Android app that makes backing up your data virtually hassle-free and allows for painless transfers to new smartphones.

Best for Apple Products: SanDisk iXpand 128GB Flash Drive

4

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Apple smart products don’t come with USB ports, so you will need a backwards compatible drive that can also plug into lightning devices. This thumbdrive from SanDisk is designed for ease of use with iPhones and iPads, thanks to a curbed plastic connector that fits behind the back of the screen. It has high-speed USB 3.0 transfer speeds and can hold over 7,200 photos or 8,000 songs. It has automatic photo backup and contact transfer to help free up space on your devices without having to deal with the slow upload speeds.

Best for Ultrabooks: Samsung FIT 32GB USB 3.0 Flash Drive

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With their paper-slim profiles, Ultrabooks and tablets are barely thick enough for a USB port. That's why some of the bulkier drives on this list are not ideal for those devices. Meanwhile, Samsung’s Fit drives are slim and compact, about the size of your thumb nail. This unobtrusive storage is constructed with a metal casing that is resistant to the elements and NAND flash technology. With USB 3.0 tech you can expect fast read speeds, while the price is easy to stomach. Just make sure to attach it to a lanyard, so you don't lose it.

Best for Macbooks: Silicon Power C80 64GB Flash Drive

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Macbooks require a USB Type-C device, which is where this swivel dual flash drive from Silicon Power comes in handy. It features a dual interface with USB Type-C and USB Type-A 3.0 ports on opposite ends of a compact device. The 360-degree swivel cap protects whichever connector is not in use and attaches easily to keychains. The C80 doesn’t require any special drivers or software to work; just plug it into the port and it is ready to go. But it has an optional file management app, which is a free and simple automatic file categorization that puts your work in the appropriate folders. Expect fast read and write speeds and 64 GB of storage to hold all your photos and files.

Best for Security: Kingston Data Traveler Vault

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High-security flash drives aren’t exactly a new concept. For as long as companies have been transferring confidential info via USB drives, there’s been a concern of keeping that info confidential. While you might be swayed by flashy gimmicks like fingerprint sensors and password keypads, these end up being too expensive and not overly powerful (with a few exceptions of course). But that’s why our security pick goes to the Kingston Data Traveler Vault.

This USB 3.0 drive offers what the company is calling business-grade security with 256-bit AES hardware-based encryption. You can also choose a stepped up “managed” version that offers a more complete set of management tools using SafeConsole as support. Finally, there’s an anti-virus version that loads in ESET antivirus software out of the box to avoid trojan horses and other hacker tracking programs. All of the models are TAA-compliant, so this drive won’t be in breach of government regulations, and that USB 3.0 means that you’ll have nearly the fastest transfer speeds possible. You can pick it up in sizes ranging from 4GB to 64GB.

Most Rugged: Corsair Flash Survivor Stealth 64-bit USB 3.0 Flash Drive

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If you are taking your data to the extreme ends of the Earth and need to go a step above and beyond to keep it safe, the rugged Corsair Flash Survivor Stealth 64-bit is the drive for you. Constructed with aircraft-grade aluminum housing and outfitted with a molded shock damping collar, this drive is meant to survive anything you can throw at it. It can even be submerged in up to 200 meters of water because of the EPDM (ethylene propylene diene monomer rubber) waterproof seal. With speeds at around 85 MB/s, this isn’t the fastest drive around, but its ruggedness is unparalleled.

Best Capacity: PNY Turbo 256GB

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Nothing fancy here, but when you need a quarter of a terabyte in a pinch, the PNY turbo has got your back. Boasting a capacity of up to 256GB, this flash drive has got it where it counts, making storage of all but the most colossal files just a drag-and-drop away. Equipped with a collapsable USB-A port, the PNY Turbo utilizes USB 3.0 architecture to supply the best possible transfer speeds currently available over a USB-A connection.

While it doesn't offer features like wireless connectivity, or data encryption, the PNY Turbo is still great for offloading a glut of files that might otherwise be taking up valuable real estate on your machine. It may not be the cheapest flash-drive available, but the price per GB still provides excellent value.