fanxiang FF520 512GB Dual USB-C and USB-A Flash Drive: specs explained

The fanxiang FF520 is a 512GB flash drive with two connectors: USB-C and USB-A. That lets it move files between a phone or tablet and a computer without a cable or adapter. fanxiang rates it at up to 560MB/s read and 520MB/s write speed, which is far above a typical older flash drive. Here is what that means in practice.

Two connectors in one

Most modern phones, tablets and many laptops use USB-C. Older laptops, desktops, smart TVs and car audio systems typically have the rectangular USB-A port. The FF520 carries both. fanxiang says the USB-C end works with Type-C OTG devices such as Android phones, iPad Pro, iPhone 15 and MacBooks, while the USB-A end fits conventional computer ports. The connector you aren't using sits on a 360° swivel design that fanxiang says helps protect the plug.

What 560MB/s means

The drive uses USB 3.2 Gen 2. fanxiang rates it at up to 560MB/s for reading and 520MB/s for writing, and says that is about ten times faster than a conventional USB 3.0 stick, based on its internal testing. The brand notes that real performance can be lower depending on the capacity, the host device, the operating system and the application.

To get the full rate, the port you plug into must also support USB 3.2 Gen 2 speeds. On a slower port, the drive still works through backward compatibility, but at the speed of that port. fanxiang cites about two seconds for a 1GB file at its rated speed.

Capacity

At 512GB, there's room for a large photo library, many hours of video, a game collection or a set of work files. Capacity is shown in decimal gigabytes, so a computer typically reports slightly less usable space.

Flash type and construction

fanxiang says the drive uses TLC NAND flash and an SSD-class controller, and rates its service life at more than 10 years, calling the flash five times more durable than QLC. These are brand claims, and lifespan always depends on how much data you write over time.

The case is zinc alloy, which fanxiang says resists drops and abrasion. It also describes the drive as shock-resistant, dust-resistant and waterproof, and quick to dissipate heat. The drive weighs about 0.1 lb.

App support

fanxiang offers a "Fanxiang Disk" app for managing backups of photos, videos, contacts and other files, and mentions SecureAccess software for storing files. Check the brand's instructions for which devices and operating systems each tool supports.

Who it suits

It suits people who move large files between a phone, a tablet and a computer, such as photographers, students, and anyone backing up media. It also suits those who want to play video on a TV or listen to music in a car from a drive.

What to check before you buy

• Port speed: confirm your device's USB-C and USB-A ports support USB 3.2 Gen 2 if you want the top speeds.
• Phone compatibility: check that your phone supports USB storage (OTG) and which file systems it reads.
• Formatting: TVs, cars and consoles may need a specific format such as exFAT or FAT32.
• Fit: check that a phone case does not block the USB-C plug.
• Backups: keep important files in more than one place, as with any single drive.
• Warranty: fanxiang states a 5-year service period; read its terms.

The short version

• A 512GB dual-connector (USB-C and USB-A) flash drive, model FF520, from fanxiang.
• USB 3.2 Gen 2, rated at up to 560MB/s read and 520MB/s write.
• Zinc alloy case with a 360° swivel cover design.
• TLC NAND flash, with app support for backups.
• Real speeds depend on the host device and port.

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