Leave it to the Empire to come up with an imaginative name like "Imperial Troop Transport"

And, as you will note from the photos in the video, OF COURSE the ITT isn't standardized, in any way, shape, or form. There's, like, five different versions of the blessed thing, because NOTHING in the Star Wars universe can EVER be standardized.

As much as I like to rip on the Mon Calamari for producing basically one-off capitol ships, the entire universe has completely buggered their logistics chain.

"Oh, you want parts for an ITT? WHICH ONE?"