The LTM404-3C3C3C3C-WHT-180 WiFi 4xMIMO Surface Mount or Mobile Antenna contains four identical WiFi elements for efficient 4xMIMO (multiple-input-multiple-output) coverage.
The elements operate on both the 2.4 & 5 GHz band.
A metal groundplane is recommended for the best possible performance.
For more details please see the LTM404 spec sheet.