NEW sealed Western Digital WD10EZEX 1TB 7200RPM 3.5" SATA 6GB/s Desktop HDD is a high-performance internal desktop drive designed for use with laptops and PCs. With a rotation speed of 7200 RPM and a cache size of 64 MB, this HDD provides fast read speeds of up to 150MB/s. The drive is sealed and brand new, ensuring reliable storage for your files and data. The WD Blue product line from Western Digital is known for its quality and efficiency, making this drive a reliable choice for expanding your storage capacity.