16x4 mixer, 1 fx send, 2 fx return, 16 xlr (no 48v phantom power - external 48v available.), 16 1/4, 16 insert, ch 1-8 rca tape in, high quality mic pre's. This is an excellent mixer, superbly built, that has been fully serviced and cleaned. Mods have also been done to lower noise floor including modified ground and additional filtering to power supply. Mechanically and cosmetically this board is clean, servicable, excellent design and parts quality ensure top performance and reliability, knobs, faders, and meters are in excellent condition, some tape on the edges on the wood sides, #8 condition