the adapter i bought with 4 TO 2 pin connector,easy to install
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View attachment 640130
Those who bought this adapter card with the given 2 cables as shown in the picture, I have verified that what xnathanh suggested in his post works. I cut off the usb connector of one cable and connect (red to red, black to black) it to the other end of the other cable. This leaves us with 2 white connector at both end of the merged cable. One end goes to the adapter card, the other goes to the Bluetooth connector on the Mac motherboard.
Both the wifi and Bluetooth are detected by the system.