Hello Scott, Due to the hard drive sho rtage we have removed the drives from our list due to being back logged with no ETA as to when they will arrive if you were to order them.  I have seen the drives listed on 3rd party sites by looking up the Model of the unit.  the only part# that I have are our replacement Part# which for your MD 3000i are: 0H6GP, 2G4HM, 67TMT, 835R9, 9CF6R, R755K, and VGY1F. Let us know how it goes.  
Dear Forks,  Do you know  which is the original Dell Part Number  for newer 2TB 7.2 RPM 3.5" Drives supported for Dell MD3000 storage system ?. In fact, we  are planning to add more spaces to the existing storage system and prefer to use larger hard drives as new 2TB Drives above for expanding data spaces.Therefore, we need to order some hard drives as well as its assembly kits but unfortuanately we could not identify which is the original Dell P/N for 2TB 7.2 rpm 3.5" Drives as needed. Sorry, we have no any 2TB drives here for references so far. Best regards Scott
2TB Hard Drives for MD3000i system