Here are the chord charts for the E minor 7 guitar chord. This is an e minor chord with the added 7th note, giving it a nice bit of flavor.
The first position of the e minor 7 chord is played with the first finger on the 5th string second fret, the second finger on the 4th string second fret, and the third finger on the second string third fret.
Another version of the e minor 7 chord can be found at the 7th fret. It is played by barring the first through fifth strings with your first finger on the seventh fret. Next place your 3rd finger on the fourth string ninth fret. Lastly, place your second finger on the second string eighth fret. This version of em7 has a little more chime to it being played up on the 7th fret.
Back down in open position you can play e minor 7 a little different than the first version above. This one is just placing your 1st finger on the 5th string second fret and your 2nd (or 3rd) finger on the 2nd string 3rd fret. Let all the other strings ring open.
Just like the version above, you can play a slightly different sounding e minor 7 by placing your 1st finger on the 5th string second fret, your 2nd finger on the 2nd string 3rd fret, and your 3rd finger on the 1st string 3rd fret.