StarTech PS22USB PS/2 to USB Keyboard and Mouse Adapter
http://www.newegg.com/Product/Product.aspx?Item=N82E16812200976&Tpk=ps22usb
I would like to use a modern wireless optical mouse with my A1200 without having to rely on my subway.
All wireless optical PS2 mice I have found are 27MHZ technology.
This is the only device I have found...
That is not a wireless device? So you are going to plug in a USB receiver for a wireless mouse and are willing to spend 80+ dollars instead of just plugging it into your Subway's USB port? I don't understand why! I know the Subway's USB ports are not very fast, but surely they are fast enough for mouse operations. I have used wired mice on my A1200 through the Subway's USB ports and not experienced any problems, so I really don't understand your thinking on this one.