Version of Western Digital 1TB WD10EACS stocked?

Hi.

I was wondering if someone from Scan could say whether the currently stocked version of the wd10eacs drives are

WD10EACS-00D6B0 (New version with 3 platters)
or
WD10EACS-007JB0 (Old version with 4 platters)

Thanks in advance.