External SSD, Sandisk, Extreme, 4TB, Write speed 1000 MBytes/sec, Read speed 1050 MBytes/sec, SDSSDE61-4T00-G25

4 TB | NVMe Yes | Write speed 1000 MB/s | Read speed 1050 MB/s | 3.2 Gen 2 (3.1 Gen 2) | Colour Black | Password protection Yes | Operating temperature (T-T) 0 - 45 °C

Warranty and RMA handling is provided by DELTA IT — you never have to contact the manufacturer or distributor separately.