The 1TB and 2TB models measure 4.22 x 2.95 x 0.44 inches and weigh 120 grams (4.2 ounces). WD’s My Passport comes in two sizes depending on the capacity you get. Of course, it is a SED or self-encrypting drive, as it comes with AES 256-bit hardware encryption. It comes with a 128MB DRAM cache and has the USB bridge and connector built-in rather than using a standard SATA connection. Encased within its plastic enclosure, WD opted to utilize a Shingled Magnetic Recording (SMR, a technology that overlaps data tracks to increase density)-based 2.5” HDD, model: WD50NDZW-11MR8S1 on our 5TB sample.
