What does add legacy hardware mean?
Legacy describes old software or hardware that's outdated but still in use. When referring to a legacy hardware device, this commonly indicates that the device contains older hardware, such as jumpers or dip switches, to configure the device.
What is legacy hardware in Device Manager?
Typically, a legacy device consists of non plug-and-play (PnP) devices that lack a peripheral controller interface (PCI) and requires manual configuration and jumper installation. A legacy device also includes computing equipment rendered obsolete by modern technologies.