NINA-W13 WiFi Modules u-blox NINA-W13 WiFi Modules are stand-alone modules that come with pre-flashed application software that supports 802.11b/g/n in 2.4GHz ISM band. The security features of these modules are embedded, including secure boot which ensures that only authenticated software can run on the module. The NINA-W13 modules are pin compatible with other NINA modules and offer maximum flexibility for the development of similar devices. These devices are designed in a simplified way to choose either to use an external antenna (NINA-W131) or take advantage of the internal antenna (NINA-W132).