I'm talking about those basic adapter that you can use to plug usb device to ps/2 port. Is there difference between when such adapter is meant for a mouse and when it is meant for a keyboard? Basically, can I use such adapter that has a logo that the adapter is meant for keyboards to connect microsoft usb mouse that supports ps/2 protocol to a pc that doesn't have usb ports?
You can only use such passive adapters if the device (mouse/keyboard) itself is a dual-protocol device that supports both USB and PS/2 natively. AFAIK there is no difference between passive adapters for mouse/keyboard.
I just wonder why the adapter has been made keyboard purple with keyboard logo on it if it doesn't matter if you use it with keyboard or mouse.
According to Wikipedia these passive adapters are not standardized but to to tell you the truth I do not see many variations how you can assign USB pins to PS/2 pins passively.
There can be only 2 reasonable variations since 5V to 5V and Ground to Ground are given. But I do not think the 2 possible variations correspond the mouse/keyboard difference.
It seems the pin layout is the same in case of mouses and keyboards:
https://www.google.hu/search?q=PS/2+pin+layou … =XMQ6FQpGrIfBEM:
I know I have already used simple green passive converters with keyboard and it worked.
Both purple and green adapters will work with USB keyboard/mouse, they are identical. But not all modern keyboards and mice can work with PS/2 protocol.
I must be some kind of standard: the anonymous gangbanger of the 21st century.
Well, like I said in my first post, I am planning to use microsoft usb mouse that says that it supports ps/2 protocol at bottom of the mouse 😀
