Unfortunately, the part with the mini PCIe card helped over 2 plastic parts that need to be pushed into one another kept together. This does not work so well with screws, this would clearly be better solved. Another problem which may occur is, but the product can not be replaced if, for example a miniPCIe FULL WLAN card by miniPCIe helped then you can indeed screw the card by the converter but to secure the antenna cable may experience problems because in is usually very saving with the cable length in notebooks.
