The adapter (not converter!) Works very well. However, can not conjure up a PS / 2 device is a USB device that. If the mouse or keyboard is not USB-compatible, the adapter uses nothing. For the price you can probably not expect.
With my "KBPC PX" Fujitsu-Siemens, the adapter works in any case as we had hoped. The keyboard is USB compatible, but is only supplied with a PS / 2 cable. For the USB cable measly 10 EUR are required (one quarter of the purchase price of the keyboard!) - An impertinence. With the adapter, I now do not need the USB cable and have thereby saving more than 8 EUR.
So, the adapter works ONLY in conjunction with a USB-compatible device!