What is the SC card slot all about?

What is the SC card slot all about? hp elitebook sc slot
➡️【Mk.com】✅भारत का एकमात्र कानूनी ऑनलाइन कैसीनो✅अब निम्नलिखित श्रेणियों में ऑनलाइन गेम खेलें: स्लॉट, कार्ड, रूलेट, जैकपॉट गेम्स। ✅  Buy PC SD card slot card reader SC card board for HP 840 G1 G2 805608-001 at Aliexpress for Find more , and products Enjoy ✓Free Shipping Worldwide! hp sc slot ISO 7816 Class A and AB Smart Cards; T=0 and T=1 Protocols; Speed up to 344,105 bps Show More The Express Card Smart Card Reader by HP is a slot-mounted card

hp sc slot 50657 - HP NB HP ELITEBOOK 840 G11 970V6ET Ultra 5-125H 14 16GB SSD512GB Finger Print SC Reader Wolf Sec W11P*Garanzia 2 anni OnSite NBD*

hpe 800w flex slot platinum hot plug low halogen power supply kit Extras include a SmartCard slot as well as both a fingerprint reader and face-recognition webcam to skip typing passwords with Windows Hello  So I'm shopping around and I land at a HP laptop An HP Elitebook 1040 G3 The seller on ebay doesn't even mention anything about the SC slot