3 Gb/s or 6 Gb/s

Hi evryone,

i just perchassed a new wd 500 GB and on the box it is written Model WDBAAX5000ENC-NRSN but on the HDD it s WD5000AAKX (6 GB/s)  .    I have ghosted 40GB HHD on  the 500 GB everything is going perfect but  the only thing weird i found is that  when i get the specs with SPEECY, it tell’s me that the sata drive is a ( sata II 3 BG/s)…i have gosted  the drive while no jumper on the new sata ! …

if suggestion or comment …need info !

thank you

Per WD Web

WDBAAX5000ENC 500 GB SATA 3 Gb/s 7200 N/A 16 MB  

Jumper Settings