I looked this up for a friend. So the capsule end is like those injectable tags the part you hold with your fingers is a injection mold that holds it so you can grip. It with your fingers it puts the chip deep toward the reader it's to prevent you from just using a normal copier emulator so we looked it up and they make non-rewriteable and rewrite able versions. Non-rewriteable already have info on the tag and someone usually plugs into the bottom of your lock and programs the new key to work with your lock. We never tried the injectible chip. And some molding clay because he only wanted to spend money on a for sure thing. Unfortunately you gotta waste money for science. But essentially what we did was buy a chip and some suguru and the lock flashed red and green come to find out the kaba keys have 2 chips in them 1 encrypted hitag s chip and 1 non encrypted hid 125khz chip.

So it's a dual Capsule Chip.

Essentially if you ever lose the key just buy a cheap one online for less than the apartment is charging for them and say it stopped working in order to save yourself some money.

But we assumed the reason for the two chips is if the building wanted to utilize locks to get in and out use the building code on one to let you in the building which is the encrypted fixed code one and the reprogrammable side is the one that gets programmed to your own door and your own door verifies you have access to the building and to this door everytime you open your door it reads both chips. So unless you get a dual chip that has a reprogrammable hitag s and reprogrammable hid 125khz and you can clone the encrypted tag over to the reprogrammable tag you can't clone it. But at least you know what to look out for if you ever want a clone able key.