Zoom TAC-2R, Thunderbolt audio interface 2-in/2-out, recording and playback up to 24-bit/192kHz, Ultra-low latency, 2 combo balanced XLR/TRS input connectors, +48V phantom power, Hi-Z input jack for direct connection of electric guitar or bass, Input impedance 3kOhms, 2 balanced TRS output jacks, Dedicated headphone jack with independent level control, LED Signal for input and output, Burr Brown mic preamps with up to +60dB of gain, 4x upsampling during A/D and D/A conversion, Asynchronous transfer system unaffected by computer jitter, Simple user interface-all operations controlled by a single rotary knob, MIDI in/out, Bus powered-no AC power required, Works with all Thunderbolt-equipped Macintosh computers running OS X 10.8.5 or later, Dimensions: 113,9 x 176 x 46,2 mm, Weight: 714g, Includes Thunderbolt cable