Keep in mind that external SD and microSD cards require a card reader if the device does not have a slot for the card. MicroSD card slots on phones are an additional form of local storage now that mobile data is directed to the cloud and phones have more internal storage. Besides storage in the cloud, MicroSD cards are often the main source of memory used within mobile phones and digital cameras. But they often carry more memory than thumb drives. These flat and thin rectangular cards (between 1 and 3mm thick) are likely the smallest and possibly the lightest form factor for flash memory. SD and microSD cards also use flash memory. These cards have been popular swag gifts to customers from financial institutions. Unlike USB-C thumb drives, the flash card drives are usually not reversible since one side of the card has a design or brand logo on it. They use a USB-C interface, which is folded or slid into a cutout within the card. USB-C has faster transfer speeds compared to lightning (40GBps vs 480MBps).Ĭredit Card/Business Card USBs are the dimensions of a debit or credit card but slightly thicker. Although Lightning and USB-C both provide connection, communication and power, they are not the same. Apple iPhones and iPads often carry a Lightning interface. Lightning Drives and cables work exclusively with most Apple products (except for 3 rd generation iPad Pros and later) but are also called thumb drives. USB-C ports and drives have faster data transfer speeds, can transmit 4K video, and has significantly faster charging of devices. While USB-A drives will not disappear immediately, consider eventually upgrading your flash memory device. USB-C drives are also backward compatible and some cables have one of each plug on either end. Now, users can expect to see more USB-C thumb/pen drives that are smaller, oval-shaped and reversible (meaning there is no right-side up way to plug in the cable or connection) as well as credit card USB drives. Before that the rectangular USB-A ports were in most devices. As a result, the thumb drive’s connector or plug has taken on a different appearance in the years following. The USB-C protocol became standard in 2014.
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