F 7alt, 4th inversion (G# in the bass)
Also written as F7alt/G#.
Notes, from the bass up
G# (bass)DbFAEbGb
The same notes as F 7alt (G#, Db, F, A, Eb and Gb), rearranged so G# is the lowest note. Use it to move between chords with smaller jumps across the keyboard.