olemus
kitsas magnetilise andmesalvetusega riba magnetkaardil

Wiktionary:
a band of magnetic material in which tiny iron-based particles are used for data storage, used on swipecards

näiteid
https://5.imimg.com/data5/FI/GK/MY-5245812/swap-card-magnetic-stripe-card.pdf

https://www.iso.org/standard/39700.html