Smartphones are getting scarily good at taking photos and videos but storage is still an issue. iPhone users, especially those shooting 4K ProRes video, know the frustration of running out of space when it matters. Transcend’s ESD420 portable SSD solves that problem with a clever magnetic design and lots of storage.
Weighing just 48g, the ESD420 is so light it feels like it could slip out of your pocket. It’s small, sleek and comes in Champagne Gold or Space Gray, colours that match Apple’s style. The standout is the magnetic back, designed to stick to MagSafe compatible iPhones. No more wrestling with big drives or worrying about one falling off a table. It clings to your phone or any magnetic surface, so you can use it while shooting on the go or rushing between meetings.
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With a USB 3.2 Gen 2 interface and speeds up to 20Gbps, it reads and writes at 2,000MB/s. That’s fast enough to record 4K ProRes video directly from an iPhone without any hiccups. For videographers or photographers working with high res files, it means no waiting around for transfers. Plug it into a laptop or tablet and it’s just as fast, working on Windows, macOS, iOS, iPadOS and Android. The included USB-C cable makes it compatible with almost any device, from a PS5 to a MacBook.

Storage options are plenty, 1TB, 2TB and 4TB. The 4TB version is a game changer for heavy users, holding hours of 4K or 8K video, thousands of high res photos or piles of project files. It comes formatted in exFAT, ready to use across devices without any setup hassle. For creators switching between gadgets, this is a small but handy detail. The drive also works with Transcend’s Elite software, so you can add a password or turn on 256-bit AES encryption for extra protection – simple but reassuring for anyone with sensitive files.
Built for tough situations, the ESD420 can take a beating. Transcend says it meets military grade drop resistance, so it can handle a few bumps without losing your data. It’s also rated IPX5 for dust and water resistance, so it can shrug off splashes or light rain.
It’s priced to compete (though prices vary) and it delivers speed, storage and design. Not perfect – some might want faster transfers or a lower price. But for iPhone users who need more space without carrying extra gear, this drive hits the spot. It’s the kind of tool that makes you wonder how you ever managed without it, solving a problem that’s been bugging mobile creators for years.
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