This is the RS-232 Female icon for Windows 10. Here we go. Optimized for 32x32 px, these are the simplest icons in the line style. Downloadable formats are PNG and SVG, among others. Icons8 icon pack is unique in providing a huge number of icons designed by the same team of four designers who create the new icons every working day in the same style and with the same quality. Same cool as the Bat Face, huh.
This looks like an upside down trapezoid. The corners of the trapezoid are rounded. In the center of the trapezoid are nine circles. There's a line of five circles near the top of the trapezoid, and a line of four circles near the bottom.