Db 7b13, 3rd inversion (B in the bass)
Also written as Db7b13/B.
Notes, from the bass up
B (bass)AC#E#G#
The same notes as Db 7b13 (B, A, C#, E# and G#), rearranged so B is the lowest note. Use it to move between chords with smaller jumps across the keyboard.