The LaCie 4TB External Hard Drive is a versatile storage solution suitable for use with laptops, PCs, and Macs. With a rotation speed of 5400 RPM, this 3.5 inch hard drive offers fast read speeds of up to 130MB/s and a transfer rate of 5GB/s. It features a rugged design that is shock resistant, water resistant, and operates with low noise levels. The drive is powered by USB and comes with a 2-year manufacturer warranty, making it a reliable choice for expanding storage capacity on-the-go.