This is an absolutely awesome piece of equipment for anyone doing music production work. It is WAY MORE than a simple D2A or A2D converter. Please see the pictures of this item. The features and specifications are summarized on the item's box. Also, there is a website for your reference on the box. Read up on this item before you buy. This model has the USB interface. Hence, it sells at a higher price than the standard model. Retail price is $2,495 (B&H Photo/Video). Discounts elsewhere vary, but B&H is a reputable seller offering returns. I purchased this item new. It was intended for use in a music production project that simply never materialized. It has been sitting in the box unused since I acquired it. Unfortunately, I have no use for this item and I am selling it at a loss. The item is in perfect cosmetic and working condition -- the same as brand new. It comes with all the original documents in the original box -- just like new. It has never been exposed to a wet or smokey environment. No undisclosed defects or problems. Check my feedback as a Seller. I do not misrepresent or overstate the condition of the items that I sell. CONTINENTAL USA BUYERS ONLY. Item will ship UPS ground with an Adult Signature Required upon delivery. I am not a dealer of electronics, so there are no returns. Please be sure this is the right item for you before you purchase it.