Focusrite Saffire Pro 40 Audio Interfaces - FireWire - 20 Inputs and 20 Outputs! Unit is in VERY GOOD condition.  No mechanical or electrical problems.  Very tiny cosmetic blemishes, with some around the rack-screw area. All electrical connections clean and noise-free. No issues with knobs or LED levels display.  No worries! Comes with AC power cord and a brand-new-in-box light-up FireWire cable (6' long). Sorry, I don't have the original cable that came with the unit. Look up the Pro 40 for all the specs, but essentially it is a 20-in and 20-out interface that uses FireWire (400) for the connection to the computer. Very stable connection. Any questions? Please ask! PRICE FIRM!