The high-read speed of 550 MB/s maximizes system performance and saves time while you are doing complex tasks With the high-write speed of 520 MB/s, get a quick response when updating or transferring files Provides sufficient storage capacity of 250 GB for your computer 256-bit encryption protects your PC from hackers and thieves by encoding all your data Have data stored faster with SATA/600 interface that optimizes burst performance. Features & details Storage Capacity: 250 GB Encryption Standard: 256-bit Maximum Read Transfer Rate: 550 MB/s Maximum Write Transfer Rate: 520 MB/s Wireless LAN: No