
Transcend ESD420 1TB Magnetic External SSD
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The Transcend ESD420 is a portable SSD with a built-in magnet that snaps onto MagSafe-compatible iPhones or magnetic cases, adding up to 1TB of storage without a cable. It uses a USB 3.2 Gen2x2 interface and SLC cache to reach up to 2,000MB/s read and write, fast enough for 4K/8K editing and ProRes recording. At 48g and palm-sized, it is built to MIL-STD-810G for drop resistance and works with iPhone, Mac, iPad, Android, PS5, Steam Deck, and Windows. It competes with other magnetic SSDs on speed and ruggedness, but its top speeds require a USB 3.2 Gen2x2 host, which many devices lack.
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The Transcend ESD420 is a 1TB portable external SSD with a built-in magnet. The magnet lets it attach to an iPhone with MagSafe or to a magnetic case. It uses a USB-C connection and comes in Iron Gray.
It uses a USB 3.2 Gen2x2 interface (20Gbps) and an SLC cache, with read and write speeds of up to 2,000MB/s. It is built to MIL-STD-810G standards to withstand accidental drops and bumps. At 48g and palm-sized, it fits in a pocket or bag.
The drive is pre-formatted as exFAT, so it works across Windows, macOS, Linux and Android. It works with iPhone, Mac, iPad, Android devices, PS5, Steam Deck, ROG Ally, MSI Claw, Xbox, Windows PCs and laptops. It also works with USB 3.2, USB 3.0 and USB 2.0 ports. It is not compatible with the iPhone's Lightning port.







