Alesis iO2 Express

The iO2 EXPRESS is a compact, audio-recording interface for home studios and portable recording setups. This two-channel USB device for Mac and PC-based systems enables you to record at up to 24-bit resolution for input into virtually all DAW, recording, and performance software.

Details
Alesis iO2 Express is a 2×2 24bits 48khz analog I/O interface with instrument, mic and line inputs. It has 2 preamps and +48V phantom power plus MIDI in/out

Compatibility
All features appear supported it has been tested in Ubuntu 11.04 and Debian Wheezy, including MIDI. The iO2 EXPRESS is compatible with virtually all audio and MIDI software. From Linuxaudio.org

Features

 * Two-channel computer audio recording interface
 * Record up to 24-bit, 48 kHz audio into virtually any software
 * Monitor sessions with balanced studio monitor and headphone outputs
 * High-quality A/D and D/A converters, discrete-design preamps, 48V phantom power
 * Inputs for microphones, line-level sources, and instruments including guitars
 * Tricolor stereo level meter and lighted status indicators for visual monitoring
 * MIDI Input and Output jacks for playing and controlling software with instruments
 * USB bus powered – no external power supply needed
 * Alesis IO2 is class compliant; it does not require drivers