Part Number: 5502307Western Digital 40-GB 7200-RPM Hard Disk Drive Revision 1
The drive supports Mode 5 Ultra ATA/100, Mode 4 Ultra ATA/66, Mode 2 Ultra ATA/33, Mode 4 PIO, and Mode 2 multiword DMA data transfers.
This drive incorporates leading-edge giant magnetoresistive head technology to meet increasing capacity needs. Read and write elements in the GMR head are separate in order to optimize read and write capabilities. The read element, composed of a thin-film material whose resistance changes in the presence of a magnetic field, produces a strong signal, allowing significant increases in areal densities.