Might be a wrong value written by copy and paste but a 2TB HDD has a real data capacity of 1,81899 TIB
Why exactly do you want a CMR instead of SMR or other?
a little more expensive than the toshiba p300 don't you think?what is the intended use case for this drive(s)? it all depends on what you intend to use them for after all. you are way too concerned with nothing.
better yet, get a 2TB SSD and forget all that rubish
you most likely have no need for raid arrays anyway (which are a major pia AND expensive)
this is the best and fastest SILENT drive you should even consider at 2TB for $280
https://www.amazon.com/Samsung-Inch...sr_1_1?keywords=2tb+evo&qid=1579184615&sr=8-1
this one too for only $213
https://www.amazon.com/Crucial-MX50..._3?keywords=2tb+crucial&qid=1579184776&sr=8-3
no useless and expensive raid needed. no mechanical parts, no read/write performance concerns