The splitters only work with ports designed for them which mostly includes laptops only. They run both mouse and keyboard to single connector using the normally unused pins for the second device. Controller can automatically sense if there's a keyboard, mouse or both on the connector and act accordingly. It is not going to work with any old desktop or most new ones for that matter.

You can always connect a serial mouse. 😀

dangerdook wrote:

Bonus question! Why does a IDE to CF card cause my Am5x86 to drop from 133 down to something dumb like 25mhz (can't remember how slow, but very slow)

Using an M919 with an X5-133 and a CF card as well with no issues. What rev is your M919? Did you try a different CF card / adapter?

Tiido wrote:

The splitters only work with ports designed for them which mostly includes laptops only. They run both mouse and keyboard to single connector using the normally unused pins for the second device. Controller can automatically sense if there's a keyboard, mouse or both on the connector and act accordingly. It is not going to work with any old desktop or most new ones for that matter.

Heck, makes sense though. I need to find a serial mouse that isn't terrible then. The PS2 mice are so cheap and easy to come by =(

derSammler wrote:

You can always connect a serial mouse. 😀

dangerdook wrote:

Bonus question! Why does a IDE to CF card cause my Am5x86 to drop from 133 down to something dumb like 25mhz (can't remember how slow, but very slow)

Using an M919 with an X5-133 and a CF card as well with no issues. What rev is your M919? Did you try a different CF card / adapter?

this one is the only one I've tried so far and I'm not sure what rev I've got. I'll have to stare at it tonight I guess.

dangerdook wrote:

Heck, makes sense though. I need to find a serial mouse that isn't terrible then.
The PS2 mice are so cheap and easy to come by =

There's another solution, too. You can build a PS/2 to RS232 adapter using a micro controller.
USB to serial mouse adapter - Raspberry Pi