This ramble is to nominate mini PCI-E as a cursed connector.Virtual Audio Cable is a software product based on WDM multimedia driver that allows a user to transfer audio streams from one application to another. You can even get m.2 adapters for Wifi( ) or FPGA( ) because it's more universal than a standard PCI-E slot now. Since the industry went the m.2 route the mini PCI-E slot is dead and dying. Now one day in my searches I did find some Intel Flash drives that were used for ReadyBoost duties on some Windows laptops, but they lack a flash controller and you need a special Linux kernel module to even use it which breaks my want to boot from the mini PCI-E device. or a USB connection, when you look for items to connect to mini PCI-E you find Wifi and 3g/4g cards and something like this.
The other mini PCI-E is just a 1x PCI-E channel. The SATA one is just directly connected to a SATA controller, when you look for storage devices for the mini PCI-E format that's all you find thanks to it's prolific use in laptops. So there's mini PCI-E and there's mini PCI-E(SATA). I should probably write a blog post about all of this stuff, it's pretty interesting. For the chip to work, it has to be powered, which entails either being physically inserted in a slot or being powered through induction. With regards to your card, if it gets swiped, it probably doesn't use a chip. The applications that run on the SIM card can include certain banking applications (those were popular in countries with less robust banking infrastructure and wide deployments of feature phones) or multi-carrier SIMs. The SIM card can actually be reprogrammed over the air (slowly) using signed SMS messages. The handset also forwards certain messages to the SIM card, such as certain special SMS messages.
SIM card applications can talk with the handset through messages, asking the handset to display menus, send SMS messages, open a browser, and more. The applets basically run on a tiny restricted JVM (no GC!) that follows the JavaCard profile. You can think of SIM cards (and other chip cards, like bank cards) as a low power computer they run their own embedded OS and can install applets.
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