Fully tested, Griffin iMac. This is the original silver version and comes in it's original packaging with jack to phono adapter and software CD. The packaging has suffered from some dampness and is not in great condition but the iMac itself is pristine and fully tested.
The iMic from Griffin Technology lets Mac and PC users add stereo audio input and output to USB equipped computers, even when they lack audio in or out ports. The interface allows the connection of microphones and other input devices to an iBook, PowerBook, PowerMac, or other Mac and PC systems, with support for both microphone and line level inputs.

1 x 1/8" (3.5 mm) TRS stereo mini microphone/line input (switchable)
1 x 1/8" (3.5 mm) TRS stereo mini line output
Connects via USB A.
64mm diameter, 22mm high. USB cable 18" (458mm).

Requires Mac OS 9.1 or greater, any OS X version, or Windows XP or later. A built in USB port. Tested on MacOS 12 (Monterey)