I too have an new computer but have the old PS2 keyboard. I like the old big keys on HP or Dell. I purchased the standard adapter at a local computer store. But to no avail, it did not work. So I go online to find out why. I could not find an answer for the problem until I read the reviews for this adapter. I purchased this one from Ziotek direct for $10.00 as they are now unavailable on Amazon. It worked as soon as I installed it. Don't buy cheap adapters or you will waste your money.