This high-quality Western Digital internal desktop drive is perfect for use with PCs and has a storage capacity of 40 GB. The drive is compatible with SATA I interfaces and has a low noise level for quiet operation. The black color and sleek design make it a great addition to any computer setup. The WD400BD-75JMC0 model is part of the Caviar Black product line and has been tested for reliability and durability. This unit is in excellent condition and comes with no visible scratches or damage. It is a great choice for anyone looking for a reliable and high-performance hard drive for their computer.