43-in-1 multi-card reader is a great accessory that allows you to read and write to many popular memory card formats (including SD, SDHC, Micro SD, Micro SDHC and many more...) on any computer that supports a USB interface (Note: the vast majority of computers support USB now-a-days). This reader supports high speed USB 2.0 for very fast and reliable data transfer. How To Use: To use this reader: Remove the card reader's protective cap, insert your memory card into the appropriate slot (the reader contains 5 different sized slots) and insert the card reader into one of your computer's USB ports. The memory card will then be displayed as a removable drive in your Windows or Mac operating system (e.g. File Explorer for Windows, Finder for Mac). Card Support: This card reader supports the following 43 different card formats: SD, SDHC, Micro SD, Micro SDHC, MS, MS PRO, MS DUO, MS PRO DUO, MS MG PRO, MS MG, MS MG DUO, MS MG PRO DUO, Extreme MS PRO, Extreme III MS PRO, ULTRA II MS PRO, HS MS MG PRO, HS MS MG PRO DUO, HS MS PRO, HS MS PRO DUO, MS ROM, MS SELECT, SD, MINI SD, HS MINI SD, Extreme SD, Extreme III SD, ULTRA II SD, SD ULTRA X, ULTRA SPEED, SD PRO, SD ELITE PRO, HS SD, MMC, MMC DV, MMC +, MMC 4.0, HS MMC, HS RS MMC, RS MMC, RS MMC 4.0, MMC Mobile, MMC Micro, M2, M2i. COLOUR MAY VARY Packaging States 15 in 1 But does not include ALL the memory card types.