8kf47 dell enterprise class 1tb 7.2k nl sas 2.5" 12gb/s 128mb 512e hdd w/tray for poweredge r610 r710 t610 r410 t410 t710 t310 r510 r810 r910 r720 r620 t620 r820 t320 t420 r320 r420 r920