Please don't judge... and its better just to nod and say, oooohkay.
But what was the fastest Hard Drive in 1999? It could have come out as late as the end of '99, but if it released in Jan 1 of '00, it is off the table.
I made it to the legacy hard drive benchmark comparison, but it wasn't able to show many any results.
I have the Seagate Cheetah 18LP, the Fujitsu MAG3182LP, and the Atlas 10k. I don't think those products were refreshed until the first quarter of '00. I don't know what a user would have chosen for an in home experience back then if money wasn't an option. For some reason I don't remember much about the Cheetah 18LP. I want to say, most of the attention for in home use during that time was focused on the Fujitsu MAG, and the Atlas 10k.
I also don't know what was hot in the IDE space at the time.