Vestax was thinking about a compact DJ solution: the result is here, called VCM-100. It can be used as on the picture, and functions as an audio interface and a MIDI controller in one. It has four analog inputs (with 18 bit resolution), and four analog outs (20 bit), and you can adjust a total of 60 different MIDI controller in the same time with its tricky switches. It runs on USB power, and made of metal fully. Price is still a secret, check the product page to learn more.