Hello, I am new here and I am also starting in the wonderful world of the arduino. I need a module or shield for arduino UNO that can send data in the 3G and/or 4G cellular network in the 900 Mhz (3G) and 1800 Mhz (4G) bands and also includes a MicroSD slot. I would like you to recommend which one to use with a good price/performance ratio. Thanks in advance
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