WD_Black P10 Game Drive (4TB) Review @ Vortez
 

The metallic enclosure comes in two sizes, 118mm x 88mm is standard, but the 2TB measures in at 12.8mm in thickness, while the 4TB and 5TB models are 20.8mm thick, to accommodate the larger hard drive with additional platters. Data is transferred over a fairly standard USB Micro B connection, with the typical Type-A USB connection.

https://www.vortez.net/review.php?id=1714