This Dell 1TB hard disk drive is a high-quality unit that is perfect for any computer system. With a rotation speed of 7200RPM and a cache of 64MB, it offers fast and efficient storage for all your important data. The hot plug support, hot swap function, and low noise level make it easy to use and maintain.This HDD is compatible with 2.5" SATA III interface, and supports HDD drive types. It is part of the Constellation product line, with a storage format that is HDD only. The unit is silver in color and has a form factor of 2.5 in. The model is ST91000640NS, and it comes with features like hot plug support, hot swap, and low noise level. This hard drive is a great choice for those in need of reliable and efficient storage.