The RedPort line, from Wiebetech, adds write-blocked ports to a Windows or Linux computer. Connecting an enclosure to RedPort on the back of a computer means the attached enclosure is write-blocked. RedPort works much like the Forensic Docks preventing writes to drives but instead of being an external docking device, RedPort is a PCI card and works within the host computer, allowing write-blocked access to enclosures or drives with one of several connection types.