Db 13sus4, 1st inversion (F# in the bass)
Also written as Db13sus4/F#.
Notes, from the bass up
F# (bass)G#BD#A#C#
The same notes as Db 13sus4 (F#, G#, B, D#, A# and C#), rearranged so F# is the lowest note. Use it to move between chords with smaller jumps across the keyboard.