Connect a USB mouse to an Apple II or early Macintosh with a 9-pin mouse port.
USB Mouse to 9-pin interface
This adapter allows you to connect a standard USB mouse to an older Apple computer with a 9-pin (pre-ADB) mouse port.
It will work with the following machines:
- Apple II, II+ or IIe with mouse card
- Apple III with mouse card
- Apple IIc or IIc+
- Macintosh 128k, 512k or Plus
The adapter should work with most USB mice that conform to the HID (Human Interface Device) standard, and don't require any driver on a typical PC or Mac to work. This includes wireless mice that use a small USB dongle.
Since each platform has different timing requirements, the interface firmware has a built-in configuration option. There are (currently) ten "modes" that can be selected. Clicking the right mouse button scrolls through them, one per click.