WIFI module USR-WIFI232-T supports I-PEX connector external antenna, wifi module must be connected to the 2.4G antenna according to IEEE 802.1b/g/n standards.

USR-WIFI232-T External Antenna Parameters
The anrenna parameter is as follows:
| ITEM | PARAMETERS |
| Frequency range | 2.4-2.5GHz |
| VSWR | 2(max) |
| Return Loss | -10dB(Max) |
| Connector Type | I-PEX connector |
| Impedance | 50 Ohm |
USR-WIFI232-T modules size(Unit:mm) as follows:

USR-WIFI232-T size