The Ugreen USB 3.0 card reader with 3 USB ports, features 4 card slots for SD, TF, MS, M2 cards and provides 3 USB ports out of one USB port. Suitable for MacBooks, ultrabooks, notebooks, netbooks, laptops, deskop PCs and Tablet PCs with a USB port connection, in order to increase the number of connections. USB 3.0 delivers faster data traffic at up to 5Gbps, above that data can be transferred up to 10x faster than via USB 2.0 with max 480Mbps and it is also backwards compatible with USB 2.0 / 1.1. All common memory cards can be recognised, SD, SDHC, SDXC, Micro SD, Micro SDHC, Micro SDXC, Mini SD, MS, MS Pro, MS DRO, M2, MMC, RS-MMC etc. It reads the cards from the capacity up to 512GB, so that the large capacity contents of the memory card can be read in seconds. Plug and play: no driver is required, supports Windows 10/8.1/8/7/Vista/XP, Mac OS X, Linux etc. Power is supplied directly via USB port on the PC / laptop, no additional power source required. Expanding 3 USB ports are also available for peripheral devices such as a printer, external hard drive, USB stick, keyboard, mouse, USB headset and more. Stable and safe: Built-in over-voltage, over-current and short-circuit protection in order to secure your high-quality memory cards and USB devices. Used ABS casing and a great finish ensures long-lasting stability during long periods of usage. Optimal look: 1m fitting cable length is for use with a desktop PC and all laptops. It is also easy to unfold and store. Even with multiple plugging in and unplugging, the USB plug is still compact.