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ps/2 or usb?
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joshbr7257:
im going to buy the ipac2 and i want to know what the differences are between the 2?
AlanS17:
The connection options are pretty much just for preference. They work the same.

For instance, a Mac user wouldn't have a PS2 port.
joshbr7257:
does it matter if you use dos mame? or mame32? or windows mame? what about front ends?
elvis:
When you say "USB" do you mean a USB-gamepad chip, or a USB-keyboard chip?

Obviously the I-Pac(tm) is a keyboard encoder, but people here have a bad habit of referring to things under a generic banner.

If it's a keyboard encoder, USB or PS/2 doesn't matter.  Most systems will enable USB-PS/2 compatability within the motherboard's BIOS so that even DOS can take input from the encoder via USB.  Linux 2.4/2.6, MacOSX and Windows 2000/XP will all handle USB keyboards natively.

If it's a USB joystick/gamepad encoder, that's a different story.  DOS is out of the question here from the word go.  MacOSX, Linux 2.6 and Win2k/XP are all fine from an OS/Kernel and MAME point of view, but you're going to have to check up on your frontend of choice to make sure it allows mappings from USB-joystick device inputs to the frontend.  I know from personal experience that MAMEWah under Win2K/XP is fine, and so is AdvanceMenu under Win2K/XP and Linux 2.6.  Anything else you're going to have to check for yourself, or hope that someone who has used/written them is kind enough to spot this thread and answer.

Performance wise, it doesn't matter squat.  I know there have been massive fights in here between USB fans and PS/2 fans over whose encoder is 2ms faster than someone else's encoder, but at the end of the day it doesn't make any bloody difference to me playing on my 2-player cabs as to which I use, and I've tried various brands in various USB and PS/2 setups, and it all feels the same to me.
joshbr7257:
ok the site wants to know first if i want a usb or ps/2 encoder, then second its giving me a cable? and wants to know:
it askes if i want a ps/2 cable or usb cable??? what do i choose?

http://www.ultimarc.com/JShopServer/product.php?xProd=3&xSec=2
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