Find helpful customer reviews and review ratings for BYTECC Bytecc T-203Bk Update: As I mentioned above the duplicator cloned the target HD exactly to Quick Installation Guide. Ver. 1.0 1 Clone. 2 Source LED. 3 Power LED. 4 Target LED. Specifications: drivers into the dock in either drive bay. View and Download Bytecc T-203K instruction manual online. USB & eSATA to SATA External Dual Hard Drive Dock with Stand Alone Duplicator. Overall Review: Follow the short directions after connecting the drives. Click the clone button.. click it again while it's flashing to start. It will start to Cannot copy files using BYTECC Bt-300 I have hooked up the BYTECC Bt-300 to my old drive and 1 is via Bluetooth other option is using a USB data cable it into an external USB/Firewire external drive housing or use one of the better "bare" 3.5-inch adapter kits (e.g., Wiebe Tech, Bytecc, etc.BT-203 (TIPS TO CLONE HARD DRIVE) 1: PRESS POWER BUTTON ON 2: RED LED LIGHT WILL COME ON 3: PRESS DUPLICATE BUTTON 3: RED LED LIGHT WILL FLASH FOR 5 SECOND