F# Augmented Major 7th, 3rd inversion (E# in the bass)
Also written as F#aug(maj7)/E#.
Notes, from the bass up
E# (bass)F#A#D
The same notes as F# Augmented Major 7th (E#, F#, A# and D), rearranged so E# is the lowest note. Use it to move between chords with smaller jumps across the keyboard.