Our this USB3.0 Multifunctional Hub 2 Ports with SATA 3.0 2.5  & 3.5 inch Hard Driver TF SD Card Reader enables you to connect 2 USB3.0 devices, 2.5 or 3.5 inch hard drives and TF or SD card to your computer via USB Port. This is the perfect tool for Windows Surface Pro, MacBook Air, MacBook Retina, ultrabook, laptops with limited USB Port. it can duplicate, copy, backup, or transfer large amount of data from one drive to another. and can connect multiple devices, such as digital cameras, PC fans, flash driver, SD, SDHC, MMC/MicroSD, T-Flash cards etc to your computers or laptops. 

Specification
1. USB3.0 Hub 2 ports
Super speed 2 port USB 3.0 hub,which transferring 5 Gbps fast speed which is 20 times than USB 2.0 
Backward compatible with USB 2.0 and 1.1 

2. SATA 3.0 Hard Drive for 2.5"/3.5" SATA HDD/SSD
Supported Drives: 2.5"/3.5" SATA HDD/SSD; 
Compatible Systems: Windows8/7/10/Vista/XP/Mac OS 9/10/Linux; 
Supports drives with a capacity of up to 4 TB; 
Support speed up to 5Gbps; 
Backward compatible with USB 2.0/1.1; 

3. TF/SD Card reader
Combined with a SD and TF card slot for SD, SDHC, MMC/Micro SD, T-Flash card,simultaneously to read and write to save yourself the effort of constant unpl ing and re-pl ing

Note: the TF/SD card can not be used together. 
DC Power Supply 12V for 3.5" HDD SSD or other power hungry devices;