Note:Please ues the power cable and usb cable at the same time,otherwise it can not work. Please follow the step: First download the driver from the link which is on the package,then install the HDD/SSD to the docking station,second connect the USB cable and power cable at last turn on it. Specifications: Provides an efficient way to exchange data and backup. Large capacity drives (up to 8TB) can be used to greatly enhance the storage/backup capabilities of your computer No drive need, plug and play. Type: Hard Drive Docking Station Material: Plastic Support System: for Mac OS X, for Windows 8/7/Vista/XP HDD: 2.5/3.5" IDE/SATA Voltage: 100V - 240V Working Temperature: 0C - 40C Plug Type: US Plug, EU Plug , UK Plug (Optional) Features: Stand Holder, HDD Dock, Dual Slot, Easy to Use Size: 16.5cm x 11cm x 10cm/6.50" x 4.33" x 3.94" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: (HDD Not Included) 1 x Hard Drive Docking Station 1 x USB Cable 1 x Adapter 1 x User Manual