Seagate Technology 200 GB USB 2.0 and FireWire External Drive ( ST3200823A-RK )
A little hard on the eardrums
This unit is my first external HD.  I have no complaints about its function as a HD, however it emits an extremely high-pitched squeal.  This occurs when the unit is *off* but plugged in.  It's just on the threshold of human audibility and very quiet, but it's enough to make me wince with aural pain.  I need to bend down to my powerstrip and unplug the thing unless it's in immediate use. <br /> <br />Again, a fine HD, but keep it in a closet or on a powerstrip you can control with a switch.