We reviewed the Chieftec BT-02B two years ago already, but Chieftec still sells this 10L chassis. It's not surprise then it has USB 2.0 ports, in addition to the audio connectors.
Positive qualities of this chassis include the ability to install a normal size 5.25-inch optical drive along with a 3.5-inch station. It comes with an integrated 180 watt power supply. The interior space is limited, but you can fit a standard size expansion card.
It doesn't have any fans, but you can fit two 6 cm fans and an 8 cm fan. If you don't, it's better you don't use a very hot CPU. In our test the temperature went above 60 degrees. The price of £62.50 still makes this an interesting option if you're looking for an affordable Mini-ITX case with PSU.