E 13sus4, 5th inversion (C# in the bass)
Also written as E13sus4/C#.
Notes, from the bass up
C# (bass)EABDF#
The same notes as E 13sus4 (C#, E, A, B, D and F#), rearranged so C# is the lowest note. Use it to move between chords with smaller jumps across the keyboard.