Constellation ES.2 and Barracuda XT

[ddd123]

1/ Constellation ES.2
ST33000650NS

2/ Barracuda XT
ST33000651AS


Hello
Can anybody advice if these hdds have the same heads?
can be swaped?

The PCB on both are the same: 100611023

[fzabkar]

Compare the second and third characters in the serial numbers.

[ddd123]

1/ Constellation ES.2
ST33000650NS
SN:Z294

2/ Barracuda XT
ST33000651AS
SN:9XK0

[fzabkar]

Your colleagues would be best placed to advise you, but FWIW I've seen the following model and serial number combinations.

Barracuda XT:
-------------
ST32000641AS --- 9WM
ST33000651AS --- 9XK

Constellation ES
----------------
ST32000644NS --- 9WM