Apogee AD-16x Digital Recording Interface With X-HD Expansion Card. These are beautiful A/D converters. The X-HD expansion card with digilink connections are included in this auction. 16 analog inputs via D-Sub connector, as well as AES, Light-pipe and digilink output. These converters have treated me VERY well, but the time has come to liquidate the mobile recording studio. Please see my other auctions for more gear. This one had its clocking chip replaced by Apogee about two years ago, no issues since. I have NOT jumped the power on these units, the power button on this one has gotten a bit finicky and could use the jump procedure. MUST INSURE... I ship on Fridays.