Hard to find Rane TTM-57 MkII DJ mixer. Top of the line in terms of build and basic features, and all faders and knobs work fantastically. As a 2 channel scratch mixer for playing analog vinyl, it's got the best of everything you'd need, including curve adjustment and reverse controls for the crossfader AND both channel faders, to customize the controls for various scratch techniques. 
When connected to a Mac or PC running Serato DJ Pro up to version 2.5.5, the mixer will be able to control features like auto-loop, hotcues, file browsing, FX and much more. 
Includes an opened but never used pair of black Serato control vinyl, original USB cable, and grounded IEC power cable. No original box, but includes the original Rane DJ sticker sheets that came with the unit. 
Previous owner has replaced the EQ knobs with DJ Tech Tools glow in the dark Chroma Caps, and the crossfader has a clear rubberized Chroma cap (not glow in the dark). All other knobs and controls are stock.
Mixer has been fully tested with and without software, and works 100% as expected.