THIS IS A BRAND NEW ROLAND BK-7M BACKING MODULE. I PURCHASED IT AS AN OPEN BOX DEMO UNIT & I'VE NEVER USED IT EXCEPT TO POWER IT UP TO MAKE SURE IT WORKED. COMES WITH MANUAL & AC POWER SUPPLY PACKED IN ORIGINAL BOX. USB DRIVE NOT INCLUDED. ASKING $800 + SHIPPING TO LOWER 48 CONTIGOUS STATES. PAYMENT VIA PAYPAL. EMAIL ME FOR PHOTOS AT JOHNLOBOSCO@ATT.NET