F# Dominant 13th, 5th inversion (B in the bass)
Notes, from the bass up
B (bass)D#F#A#C#EG#
The same notes as F# Dominant 13th (B, D#, F#, A#, C#, E and G#), rearranged so B is the lowest note. Use it to move between chords with smaller jumps across the keyboard.