serves as host for IBM compatible HD controller cards
supported controller cards (A1000 version):
Western Digital WX1 or DTC5150
Western Digital WX2, but drives attached are limited to 20 MB
National Computer NDC5127-50, but 2.5 times slower than the WX1
the A500 version supports the Western Digital DTC5150 / 5160 cards only
the controller card is connected to the WEDGE card through a backplane with 8 bit XT slots - multiple controllers are supported by using a backplane with additional XT slots
basically the WEDGE hardware just maps the 8 bit I/O memory space of an attached card to the Amiga memory space ($EA0000 by default)
with proper software the WEDGE can be used with any type of XT cards (like serial cards or disk interfaces)
uses programmed I/O transfers
does not autoconfig
connects to the side expansion port
no passthrough connector
the system was sold either as a single WEDGE card or as complete package containing WEDGE, backplane, WX1 or DTC5150 controller card, case with power supply and a 20 MB or 40 MB MiniScribe hard disk drive