@Edpon
The Catweasel MK4 is a PCI card, as seen
here. Its main purpose is to allow you to read/write non-standard disks (such as Amiga and C64 disks) using standard PC floppy drives.
There are also two "atari-style" joystick ports, and a mini-din connector for keyboards.
Additionally, the MK4 has two sockets for SID chips, the C64 sound chip. Currently you can use one SID chip only.
The current driver software and application support does not enable the full potential of the card. But you definitely can use it to read and write Amiga disks, for use in any amiga, using the supplied image tool. That is actually my reason for posting this thread.. It's a clever way to write real Amiga disks out of ADF files.
It's also good for preserving your Amiga floppies, just read them and burn the images on a CD. By the way, if you have important stuff on your Amiga floppies, consider doing this as soon as possible. My Amiga disks seem to be deteriorating, but for some reason C64 disks are still going strong, 20 years after the were written... :-o:-D