Db 7sus2, 1st inversion (D# in the bass)
Also written as Db7sus2/D#.
Notes, from the bass up
D# (bass)G#BC#
The same notes as Db 7sus2 (D#, G#, B and C#), rearranged so D# is the lowest note. Use it to move between chords with smaller jumps across the keyboard.