I have an old, Dell Desktop computer (2008) which works fine. Recently I purchased a 256GB flash drive to contain backups of my external hard drive. Copying files/folders from my external drive to the flash drive takes forever (24+ hours). It finally dawned on me the desktop has USB 2.0 ports. I went out to the Amazon site, looking for USB 3.0 cards, but none of them have good ratings. I also realized I would require a USB 3.0 flash drive. I also know I should probably upgrade to a new desktop or tablet, but can't afford it right now.