I too am seeing the same error
speccy 1.29.714
Computer: HP envy notebook
HD 1 T Hybrid
Windows 8.1 Pro x64
attached 2 USB external drives
I won't repeat all the info winactive did unless someone wants it, but I see the same problem as the area he highlighted. The two external drives show the same info as the internal drive. One other thing I see is an entry that only exists for one of the external drives.
The drive is a Hitachi Model - HUA722020ALA330 There is this entry:
Model Capacity For This Specific Drive 200GB
which is not correct. This is a 2T drive
But this entry is correct:
Real size 2,000,398,934,016 bytes