This Western Digital Caviar Green 3TB SATA Hard Drive is a great addition to your PC or Mac. Its 5400 RPM rotation speed and 64 MB cache ensure fast and efficient performance. The drive is designed for internal desktop use and supports SATA III, SATA II, and SATA I interfaces.This 3.5-inch drive is compatible with PCs and Macs and comes in a green color. It has a storage capacity of 3TB and features hot swap, removable, and low noise level options. The drive is a Western Digital product with the model name Caviar Green. It is designed to be a HDD-only storage format and has a form factor of 3.5 inches.