Description: Features: brand new and high quality. 1. Small size, simple type line design, convenient to carry. 2. USB 2.0 interface transmission speeds is up to 480 Mbps. 3. Organize your photos, watch films or access your data with this OTG adapter. 4. Support USB keyboards, most mouses, USB flash disks, USB hard disks. 5. The 3 USB ports can be connected at the same for time. 6. It also combined with a SD and TF card slots, which makes reading different types of memory cards is very convenient. 7. External power source(connected via Micro USB connector) is needed when this card reader is connected with external hard disk. (power adapter is not included.) 8. for for Galaxy S4, S3, for Galaxy Tab 4, Tab s, Note 3 and other devices with OTG function and Micro USB port. Please note: This item doesn'for t support charging function. This card reader + hub has a for DC facility, if your smartphone/tablets can not power this hub when you connect a hard disk to it, please use our USB cable (included) and external power adapter(not included) to power it. SD and TF card cannot be read simultaneously, it can only read one card once. Specifications: Item Type: 3-Port USB 2.0 Hub Combo for Shell Material: ABS Color: White Size: 852220mm/3.350.870.79in (Approx.) Cable length: 15cm/5.91in (Approx.) USB Type: USB 2.0 USB Ports: 3 Ports Date Transfer Rate: Up to 480mbps Connector: USB 2.0 Micro-B male Card Reader: For SD/SDHC/SDXC/TF(Micro SD) card (Not included) Compatible OS: for Windows XP/2000/Vista/WIN 7/8/10, for Mac OS, Linux, Android, etc. Quantity: 1 PC (other accessories demo in the picture is not included) Note: 1.Transition: 1cm=10mm=0.39inch 2.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! 4.No retail package Package includes: 1 X USB 2.0 HUB SD/TF Card Reader (No retail package)