Got a camera that uses old CF cards but you want to use cheaper micro SD cards? This QUMOX adapter lets you do just that. It has two slots, so you can pop in two micro SD or TF cards (up to 64GB each) and it shows up as one Compact Flash Type I card. It supports high-speed CF interface and works with SD 3.0 standards. Plug it into your camera or card reader - it's compatible with Windows, Mac, and Linux. Important note: This adapter runs the cards in a RAID 0 array. That means it's faster, but if one micro SD card fails, you could lose all your data. Also, always format new cards in your camera first. A clever adapter for keeping older gear useful.