The Seagate ST1000LM035 1RK172-189 is a 2.5-inch hard drive with a storage capacity of 1TB, suitable for use with laptops and PCs. It features a silver color, 5400 RPM rotation speed, and is part of the Seagate brand's Mobile product line. With a cache size of 128 MB and a low noise level, this internal laptop drive is also PlayStation 4 compatible and offers read speed of up to 500MB/s. Perfect for those in need of a reliable and efficient hard drive for their computing needs.