The Dell 80 GB Internal Hard Drive offers an ideal data storage solution for your Dell Notebooks. It has 16 MB cache and features an ATA-6 interface providing maximum transfer rates of up to 100 MBps. In addition, this drive offers 5400 RPM rotational speed with a 12 ms typical seek time for fast data access. The drive has Fluid Dynamic Bearing (FDB) motors to help limit acoustic noise, resulting in whisper-quiet operation. This product has been tested and validated on Dell systems to ensure it will work with your computer and is compatible with Dell / X1 Notebooks. It is supported by Dell Technical Support when used with a Dell system.