Unitronics PLCs are not designed to support SD card extenders of any type, But we know that some customers use such extenders under their responsibility.

SD card slot is located at PLC board, which is EMI protected and any extender will add capacitive load to SD card bus make it sensitive to EMI – it will work as antenna – and will lower reliability of PLC

Please note that technically we do not recommend the use of extension to microSD and / or SD.