Root on A string
x2524x
B7♯5 is the B dominant 7 sharp 5 chord. Its notes are B, D♯, F♯♯ and A. The raised fifth adds tension before a resolution.
x2524x
Numbers show frets from the low E string to the high e string; x means don't play that string.
Every B, D♯, F♯♯ and A on the first 12 frets. The filled dots are the root, B. Build your own shape from any nearby group.
Other B chords
Other dominant 7 sharp 5 chords