I think you should check this one new product… http://forum.mikrotik.com/t/future-of-lte-products-user-feedback-requested/117022/138
And as bonus the info about chateau (edited recently) with inside photo of his PCB (at end of this my answer) : http://forum.mikrotik.com/t/future-of-lte-products-user-feedback-requested/117022/138