Some hail these as Black Magic, others think they are subpar nunchucks.
I use them to relocate my NFC Reader and i am just happy they function.
Coming in at 60mm x 0.8mm these will extend your NFC field from point to point. Pretty self explainatory but ill do my best to help out the hooligans in the back. Place one on or near a reader, and place the 2nd device where you wish the reader was. Poof, you are no longer tethered to the bulky predisposed position of the pesky importable reader.
But Why?
Usecases for this could be relocating a door access reader inside of the building and placing this extender on the outside in a weather box to reduce RFIDKey attacks.
Use with Mobile payment terminals to have a more convenient spot under a deskmat or kiosk.
Personally, i use this on my computer desk with an out of the way hidden Reader so i dont need the bulky reader up top.
60mm Pro ($55-$60)- Comes with a IPEX1 (U.FL) connector and a 30cm cable.
Reviews
I purchased several types of extenders to increase the range of my NFC reader for tag reading. Depending on how the size of the extender, I configured the extenders I increased the range from less than 1 inch to between 4 and 10 inches which is exactly what I was to accomplish.