HP StorageWorks MSA2 500GB 7.2K rpm 3.5 inch Dual-port SATA Hard Disk Drive

Serial ATA discards the parallel ATA Master/Slave concept and only allows one device per cable which the system views as a master ATA device. These point-to-point connections allow each drive to communicate with the controller without having to wait for other data traffic to clear first. SATA technology has the potential to shrink form factors lower power consumption and extend I/O performance to meet the bandwidth requirements of a new wave of technological advances.