The HP 16500 / 1660 / 1670 series which have hard drives use standard IDE drives.
They might be slightly picky about which drives work. Any drive larger than around 2GB might have some issues. Why do you ask? On Sun, Jan 5, 2020, 6:42 AM GerardCJAT via cctech <cctech@classiccmp.org> wrote: > This equipment is said to have an internal 2 Go HD. > > Who knows what KIND of HD ?? HP SCSI ?? > > Thanks > >