The Kore software has been discontinued in favor of Maschine but this controller can still be used, either with said Kore software on an older computer or as a common MIDI controller with USB audio.
It includes a quality USB 2in / 4out audio interface (up to 24-bit/96kHz!) and a physical MIDI in/out port.
Drivers are even available for Win 7/8/8.1, OSX 10.7/10.8/10.9
The controller has served me well for years. If you're on a budget and need a USB audio or MIDI interface consider this!