HC79N - Dell 250GB 7200RPM SATA 6Gb/s 64MB Cache 2.5-inch Hard Drive with Tray

About DELL 250GB SATA 7.2k 2.5", 2.5", 250 GB, 7200 RPM

DELL 250GB SATA 7.2k 2.5". HDD size: 2.5", HDD capacity: 250 GB, HDD speed: 7200 RPM

To buy the right hard drive it is important that you know the interface type of your computer. The interface type determines the compatibility to a system. Common interface types today are IDE (also known as PATA), SATA, or SCSI. SCSI interface type may come in different pin configurations.

Speed and Capacity determine how much data can be stored and how fast the data can be accessed. The higher the capacity, the more data can be stored. Similarly, the higher the speed, the faster the computer can access or write data to/from the hard drive.