Peace, mercy, and blessings of God be upon you. May God bless and grant peace to our Prophet Muhammad, may God's prayers and peace be upon him. What God has willed, the beauty of God's creation. Seagate Laptop Thin HDD (the slim version). Model: ST500LT012 Capacity: 500 Gigabytes (500GB) Form Factor: 2.5 inches – very slim (7mm Thin) Speed: 5400 RPM Cache: 16 MB Interface: SATA 6Gb/s (SATA III) Features: Ultra-slim size (7mm): Compatible with all modern and slim laptops (Ultrabooks) as well as regular devices. Low power consumption: Provides quiet operation and preserves laptop battery life. Ideal uses: Excellent for expanding PC and laptop storage, or installing as an external HDD when placed in a USB enclosure or with a USB external cable.