N.B. Select Amazon US as the seller for this price.
20TB is the largest commonly available HDD capacity afaik.
Only a bargain in the sense that it's +$1300 elsewhere and this is as cheap as it has been. I think 18 and 16TB drives offer much better value atm but for those that need or want the biggest, here it is.
Apparently it has "Energy-assisted magnetic recording (EAMR) and triple-stage actuator (TSA)" and "HelioSeal technology delivers high capacities with a low power draw". Not really sure what that means, for me it's just a stonking huge drive that I can't or won't afford!
Also note that it's "Usually dispatched within 2 to 5 weeks".
I read quite a bit within the forum that Amazon doesn't bubble wrap the bare drive nore in a box. mostly just in a bag and travel all the way to Australia. So there is a risk with bare drive I guess.