ESI U46 XL – 16bit/48kHz USB audio interface with 4x inputs, 6x outputs (RCA) plus separate mix output (1/4" TRS), thomann microphone input with balanced XLR input and switchable +48V phantom power, Hi-Z input for electric guitars, bus powered (no power supply required), EWDM driver with MME, WDM and ASIO 2.0 support. Compatible with Windows (XP/Vista) and Mac OS X (10.3 and higher). Supports DirectWIRE.