‎Card Reader Slot on Latitude 5520 laptop

Dell Latitude 13-5300 Smart Card Reader How-To Video dell sc slot Aside those there is an umd card slot I have no idea what the umd lot is for Lastly the card has a smart card slot What is it and can I dell latitude 3480 m2 slot I have installed Ubuntu on a Dell Latitude E7450 which has an SD Card reader that is built into the laptop

dell sc slot smart card slot The right-side features yet another USB port, an SD card slot, a headphone jack, and a Kensington lock In other words, the