Db Augmented Major 7th, 2nd inversion (A in the bass)
Also written as Dbaug(maj7)/A.
Notes, from the bass up
A (bass)B#C#E#
The same notes as Db Augmented Major 7th (A, B#, C# and E#), rearranged so A is the lowest note. Use it to move between chords with smaller jumps across the keyboard.