Db 13sus4, 2nd inversion (G# in the bass)
Also written as Db13sus4/G#.
Notes, from the bass up
G# (bass)BD#A#C#F#
The same notes as Db 13sus4 (G#, B, D#, A#, C# and F#), rearranged so G# is the lowest note. Use it to move between chords with smaller jumps across the keyboard.