I'm part of the 1%. The keyboard snobs.
I use a 16 year old keyboard. It's made by Alps, with all the hullabaloo to do with their key-switches. Interestingly enough, it also has an Alps Glidepoint pad attached.
I have fallen in love and cannot stop using this - I even continue to seek out replacements for the time when it fails completely - but I am faced with a dilemma.
My new PC has -1- PS/2 port. Every USB connected PS/2 port adaptor seems to run abysmally slow, to the order of 30hz when using 'evhz' as found on the ArchLinux wiki for mouse polling rate. "event6: latest hz = 31 (average hz = 31)" I've tried the "Cheshen" chip dongle adaptors. I've got an old KVM which seems to work better/more reliably, but is just as slow. Its listed as an EzKEY Corp. USB to PS2 Adaptor v1.09.
I want something that I can use entirely reliably, and it comes down to the scan rate of the conversion algorithm. I fill up whatever buffer exists in the PS/2 controller of the thing because the pad is extremely high DPI. I can cross 1600 pixels in one fell swoop and still have the precision to do simple graphic editing without moving for the mouse.
Does anyone make a better/faster/stronger PS/2 to USB adaptor? Does a PS/2 to PCI one exist, that doesn't involve a USB controller intermediary? I want a full proper 200Hz secondary PS/2 port!