Yottamaster 1TB Magnetic External SSD - Fast Portable 4K Storage

In this review the Yottamaster 1TB Magnetic External SSD is presented as a portable storage option for content creators and power users who need fast, on-the-go capacity. The biggest reason to consider it is its focus on high sustained throughput and mobile convenience: with up to 2000MB/s transfer on the proper interface and a magnetic MagSafe-friendly design, it targets users who record 4K ProRes video on iPhone 17/16 Pro Max or move large files between devices quickly.

Key Features

• High-Speed 2000MB/s Transfer: When paired with a USB 3.2 Gen 2x2 host and a 20 Gbps cable, it delivers up to 20Gbps performance so large files move in seconds.
• Supports 4K ProRes Recording: The drive can record 4K ProRes video directly from iPhone 17/16 Pro Max, enabling real-time capture without a secondary transfer step.
• Magnetic Design: A built-in magnet and included magnetic ring let the drive attach to MagSafe-compatible phones or cases for convenient mobile workflows.
• Plug-and-Play Compatibility: Comes with a Type-C data cable and works with Windows, macOS, Linux, and Android devices for straightforward use across platforms.
• Multiple Capacities: Available in 512GB, 1TB, and 2TB so users can choose the right balance of portability and storage for photography and video projects.

Who It's For

The Yottamaster magnetic PSSD is best for mobile photographers, videographers, and anyone who shoots high-bitrate video on recent iPhones and needs immediate, reliable storage. Its magnetic attachment and real-time ProRes support make it especially useful for iPhone 17/16 Pro Max users who want to offload or record video without a laptop in the loop.

Those who should look elsewhere include owners of iPhone 14 or earlier models, which are not supported, and users who need Thunderbolt-level throughput on Apple computers, since Thunderbolt compatibility limits transfer speed to 10Gbps on affected devices.

Pros & Cons

Pros

• Very fast transfer potential when used with a USB 3.2 Gen2x2 host and 20 Gbps cable, saving time on large file moves.
• MagSafe-friendly magnetic mounting and included ring make it practical for mobile capture and quick attachment.
• Direct 4K ProRes recording support for iPhone 17/16 Pro Max removes an extra step from a mobile workflow.

Cons

• Maximum 20Gbps speeds require the specific Gen2x2 interface and cable; real-world speeds will be lower on other hosts or with Thunderbolt-limited Apple devices.

Specifications

Capacity	512GB / 1TB / 2TB options
Max Transfer Speed	Up to 2000MB/s (20Gbps with USB 3.2 Gen2x2 and 20Gbps cable)
Interface	USB Type-C (USB 3.2 Gen2x2 supported)
Mobile Recording	Supports 4K ProRes recording on iPhone 17/16 Pro Max
Compatibility	Windows, macOS, Linux, Android, smartphones, tablets, consoles
Magnetic Attachment	Built-in magnet plus included magnetic ring for non-magnetic cases

Our Verdict

The Yottamaster 1TB Magnetic External SSD is a practical, high-performance portable drive for creators who record 4K ProRes or move large files between devices. It offers strong value when paired with a USB 3.2 Gen2x2 host and the proper cable, and the magnetic design genuinely improves mobile workflows for supported iPhone models.

Frequently Asked Questions

Will this work for direct recording from my iPhone?
Yes - it supports 4K ProRes recording on iPhone 17 and 16 Pro/Max models for direct capture to the drive.

Do I need a special cable to reach the top speed?
Yes - to achieve the 20Gbps peak you must use a USB 3.2 Gen2x2 interface and a 20 Gbps data cable; other interfaces will not reach that speed.

Is it compatible with older iPhones?
The drive is not compatible with iPhone 14 and earlier models for direct recording, so older iPhone owners will need a different solution.