Pls check your Laptop's Model,and more details before purchase, thanks! Note: it is imperative that the system have battery DISCONNECTED and the system fully discharged PRIOR TO installation, as damage to both the drive and logic board may be caused by static power. This cable CAN be used on the 2011 version, but the ribbon will NOT align properly. It is recommended to get the correct ribbon for your system - review the part# on the ribbon prior to purchase. Part Number: 821-0814 -A Compatible Model MacBook Pro 13" Unibody A1278 MacBookPro5,5 Mid 2009: MB990LL/A (2.26 GHz Core 2 Duo) MacBookPro5,5 Mid 2009: MB991LL/A (2.53 GHz Core 2 Duo) MacBookPro7,1 Mid 2010: MC374LL/A (2.4 GHz Core 2 Duo) MacBookPro7,1 Mid 2010: MC375LL/A (2.66 GHz Core 2 Duo) Package Include: 1 x HDD cable without bracket