A safe and easy way to use your 2.5" or 3.5" SATA hard drives externally at data speeds of 5Gb/s without hard drive enclosures. Easily insert and remove hard drives from the docking station. The DONN12B doesn’t require any software installation, with a simple Plug-and-Play setup. It is perfect for transferring large video files, making backups or just as second hard drive. Available with dual drive slots and offline clone function, the DONN12B is able to support 2 hard drives at the same time and provides 1-on-1 duplication of the hard drives without needing a computer. The included USB 3.0 cable connects the docking station to your PC or laptop, with LED indicators clearly indicating the device's operational status.