1:Plug and play, unlimited capacity 2:Compact and easy to carry 3:Through the USB interface power supply, no external power supply 1: Intelligent high-speed multi-card reader, plug and play. 2: Small and easy to carry. 3: Support system: Windows 10/8/7 / Me / 2000 / XP / or MAC. Card slot 1: SD / SDHC / MMC / MMC II / RS MMC / MMC 4.0 / Ultra II SD / Extreme SD / Extreme III SD, card slot 2: T-Flash / MICRO SD / TF, USB version: 2.0. Brand General SKU 100516790_NP-1020864940