SanDisk Professional 4TB PRO-G40 SDPS31H-004T-GBCND is an SSD type hard drive. Potentially a perfect choice if you happen to be looking for an SSD drive.
From Amazon
SanDisk Professional 4TB PRO-G40 SSD up to 3000MB/s, External Solid State Drive, Thunderbolt 3 (40Gbps), USB-C (10Gbps) Ultra-rugged IP68 dust/water resistance
The product is available from £399.99 at international stores.