Professional Sound Interface External Sound Card 4 in 4 Out 192kHz High Fidelity XLR TSR TS Port USB Sound Interface Item Type: Professional Sound Interface Material: Iron Input Voltage: DC 5V Input Ports: Preamp: 4 Port Design Types: 4 x XLR, TRS Combo Connectors (Mic, Line, Instrument) Input Level Attenuation: 4 x Attenuation Switches Frequency Response: 10Hz-50kHz (0/-3dB) Impedance: Mic Input: 3kOhm, Instrument Input: 1MQ Input Level: Mic: 4dBu, Line: 20dBu, Instrument: 3dBu Phantom Power: +48V, Switchable Output Ports: Types: 1 x 1/4in Stereo (Headphone) 2 x 1/4in TRS (Main Line Outputs) 2 x XLR (Main Line Outputs) 4 x 1/4in TRS (Playback Line Outputs) 4 x Playback Line Outputs  Frequency Response: 10Hz-43kHz (0/+0.3dB) Output Level: +3dBu System Data: Dynamic Range: 100dB A Weighted Frequency Response: 10Hz-43kHz (0/+0.3dB) Insert Interfaces: Types: 4 x 1/4in TRS Impedance: 100 Ohm send, 10k Ohm return Input Level: +3dBu MIDI Input, Output: Types: 5 Pin DIN, 1 Input, 1 Output Monitoring: Direct Monitoring Control: Mix Balance Control (Input Playback) Headphone DJ Monitoring: Monitoring A/B Switch (Output 1-2/3-4 Selection) Security Lock: for Kensington Security Lock: Yes Digital Processing: Supported Sample Rates: 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz Computer Connection:Professional Sound Interface Types: USB2.0 B Type