This Western Digital Internal 2.5" SATA Hard Drive boasts a generous 500GB capacity, enabling storage of Approx. 125, 000 music files, or 100, 000 digital photos! Incorporating advanced technologies such as Whisper Drive & Secure Park, the Internal 2.5" SATA Hard Drive is incredibly quiet & energy-efficient in use, which makes it an exceptionally good choice of laptop drive. Enjoy the reliable & unobtrusive performance of the WD Blue Internal 2.5" SATA Hard Drive!