Code point
U+2564
Glyph appearance depends on your fonts.
U+2564
SoU+2564 BOX DRAWINGS DOWN SINGLE AND HORIZONTAL DOUBLE is a Unicode 16.0.0 character in the Other Symbol category. It belongs to the Box Drawing block.
Choose the representation you need, then copy its value.
U+2564
9572
╤
╤
╤
E2 95 A4
2564
00002564
%E2%95%A4
\u2564
\u2564
\u2564
\2564