The Universal 80GB Hard Drive by bytech is a 2.5-inch external drive that is compatible with iPhone, PC, iOS, Mac, and Android devices. It features a 5400 RPM rotation speed, 32 MB cache, and comes in a sleek black color. This hard drive is suitable for portable storage and backup, offering a storage capacity of 80GB. With a USB 2.0 interface, removable features, and adaptive memory technology, this external drive is a versatile and reliable storage solution for various devices.