Originally Posted By: L_Sludger
Originally Posted By: fsdork
If you do get a USB hub, make sure it is powered by plugging into an outlet. The ones that simply split the power from a USB port are useless. They get overwhelmed and start dropping devices. It's rather annoying when all of a sudden your keyboard doesn't work.
As for the adapter, the other posters are correct. USB to PS2. Some USB mice and keyboards were coming with them for a while, but that may have stopped now, given how long it's been since PS2 ports became uncommon on computers.
as long as you're not charging a device, heating your home, charging your electric car, running a lamp or coffee warmer or a spinning hard drive from USB, you usually don't need a powered hub to connect things like mice, keyboards, printers, digital cameras, etc.
I'd have to disagree, most unpowered devices (that draw power from usb) will need a powered usb hub.
These would be devices that dont have separate power plugs.
Cell phone, mouse, keyboard, usb headphones, etc.
Plugging in more than 2 without a powered usb hub can be problematic.