For sale I have one M-Audio MobilePre USB Bus-Powered Preamp and Audio Interface (MID99004076400).
"MobilePre USB is the preamp with a built-in audio interface that’s designed for laptop recording such as field recording and sampling expeditions. In fact, it’s one of the only completely bus-powered preamps available. (Of course, you can use it on the desktop as well.) A total of three kinds of audio inputs and outputs provide maximum flexibility for any application—including two on-board microphone/instrument preamps and high-impedance instrument inputs ideal for connecting guitars and basses. And unlike many competitors, zero-latency direct monitoring provides you with a streamlined professional recording experience.
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-2 x 2 16-bit/48kHz analog I/O
-2 microphone inputs (XLR balanced) with 48v phantom power
-stereo microphone input (1/8”)
-2 high-impedance instrument/line inputs (balanced/unbalanced 1/4” TRS)
-2 mono line outputs (1/4” @ -10dBV)
-stereo line output (1/8”)
-stereo headphone output with level control knob
-gain control knob for each input channel (+40 dB max)
-zero-latency hardware direct monitoring (mono/stereo) with software level control
-USB-powered for total mobility
-sampling rates (kHz): 8, 9.6, 11.025, 12, 16, 22.05, 24, 32, 44.1, 48
-frequency response: +/-0.8 dB, 20Hz to 20kHz
-signal-to-noise ratio: -88dB, A-weighted
-dynamic range: 88dB, A-weighted
-THD: 0.013% (-78 dB) @ -1dBFS, 1kHz
-USB recording: 16-bit/44.1kHz > 2-in/2-out
16-bit/48kHz > 2-in/2-out
-ASIO 2
-MME
-Sound Manager
-DirectX
-Mac OS X Core Audio / Core MIDI
Cost me over $200 new.
$90obo.