SilverSATA I Internal
Features a swappable tray in a standard 5 1/4" (same size as most CD-ROM drives) internallly mountable bay. A spare internal SATA port is required (see our PCI host card page for options). Mac Desktops use a smaller size for their optical drives, so SIS1-INT works in PC towers only. Nearly all PCs use this standard 5.25in size.