I think that's one reason I stick with Gigabyte mother boards too. I find it funny too that the Gigabye board I'm using with my Windows 7 machine has absolutely no provision for floppy drives, parallel, nor serial ports. There are no headers for these anywhere on the Mobo, yet, it still has PS2 connections.
The hell of it is that due to my vintage computer hobby, I really need these ports to connect various things, including my all original IBM 5150 Personal Computer via laplink3 cables. So instead of adding the ports to my Windows 7 machine, I rebuilt an old 1988 Compaq running Windows 98 over an updated version of DOS 2000, replacing the original underlying DOS 7.0. The Compaq came to me with a 233MGH processor, 16 Megs of RAM, 4 Gig hard drive and all of the forementioned ports. I even had to remove the original 3.5" floppy drive, add in a 100 Meg zip drive, and finally install a 5.25" DSDD 360Kb floppy disk drive so I can write floppies to use in my old IBM computer.
Back on topic: I just thought it was still a good idea to re-post the PS2 PCI card, so others, like me, can add that option to our systems. It seems like a good idea to every once in a while remind some people, that there are options out there. And because they add the PS2 using a PCI slot, there is no need for a USB keyboard to get into the BIOS, as someone had mentioned. (I suppose that would really be determined by the computer and it's version of BIOS though, wouldn't it?) I am using one of these cards on a somewhat older computer (The previously mentioned Compaq 5304) whose PS2 ports are dead. So I added them using one of these cards as a replacement. It works fine. Yeah, I did have to go into the Device Manager to disable the original PS2, but when I rebooted, the model M keyboard I use on that system didn't have any problems.
The other adapter sold by Sears.com is just plain worthless. It connects using a single internal USB connection, so there is no way it can supply the PS2 ports with enough power to drive many old keyboards.