B-Stock, Universal Audio Apollo Twin MKII Duo Heritage Edition; 2x6 Desktop Thunderbolt Audiointerface with 2x SHARC DSP (all UAD Plugins are processed on the DSP without using core performance from the host computer); 24-Bit / 192 kHz; Unison Mic Preamp Emulation Technology; build-in Talkback-Microphone; Monitor Functions like Monitor-Remote and Switches for Mono, Mute, DIM and ALT Monitors; 2x Unison Mic-/Line-Inputs XLR/Jack ¼"; 2 Line-Outputs Jack ¼"; Hi-Z Instrument-Input and Headphone Output Jack ¼"; 2 digital controlled analog Monitor Outputs Jack ¼"; optical Digital-Input S/PDIF / ADAT; Thunderbolt Connection; incl. external Power Supply 12V DC with interchangeable EU/UK Plug; for Mac OS and Windows; Thunderbolt-Cable optional (not included); incl. Software Bundle Desktop Heritage Edition & Realtime Analog Classics, B-Stock with full warranty, may have slight traces of use