Samsung offers the portable T7 Shield series in three capacities, ranging from 1TB on up to 4TB, in blue, black and white varieties. We’ll be focused on the recently released 4TB model here, which is only being offered in black. The drives feature a USB 3.2 Gen 2 10Gbps interface (USB Type-C connector) and are outfitted with a proprietary Samsung controller and the company's latest 1xx-layer 3D V-NAND. That’s an update from the previous-gen T7 drives which features 92-layer 3D V-NAND.
Samsung rates the drives for transfer speeds up to 1,050MB/s (reads) and 1,000Mb/s (writes), which puts performance well ahead of any SATA-based solid-state drive, but not on the level of most Thunderbolt-based external storage solutions or many USB 3 / 4 NVMe enclosures, when paired with a good-performing NVMe SSD, of course