I am happy to report that 1010 keys on ebay is legit.

Also, I am impressed with how they treat their customers.
I expressed a concern and they treated me with respect and dignity in a courteous reply with prompt communication and that's how customers like to be treated.

New key came as a complete key FOB assembly with battery already installed.
FOB shell fitment is good with no large gaps and looks ok quality.

Then I tested it on the door switch and it unlocked the door smooth as butter.
Next I tested in the ignition and also smooth as butter.

My key is not programmed to the immobilizer yet and my wireless FOB doesn't work yet either of course, so I am looking for links to help with this and yes I have master keys so it's not an "all keys lost" situation.
If nobody has anything I will have to dig thu the manual and hopefully find a procedure.
Not sure if procedure is same for RX330 and RX350 so if someone knows plz enlighten us.

What's in the box?
Pictured exactly as received.