The DUPCARD 16X CD/DVD controller is perfect for building your own tower duplicator. It does not need connecting to a computer and is available with connections for 7 or 11 writer drives. You can copy data, audio or video CD/DVD easily and quickly through the 4 buttons on the copy controller’s panel and LCD. It is perfect to create tower duplicators for your own use or for sale. The Dupcard controller comes with everything you need to install and operate.               The WYTRONN 18X CD/DVD controller is perfect for building your own tower duplicator. It does not need connecting to a computer and is available with connections for 7 or 11 writer drives. With its easy to use 2 button controller panel and LCD you can copy data, audio or video CD/DVD quickly. The Wytronn controller makes excellent copies and is so easy to use anyone can operate it. It is perfect to create tower duplicators for your own use or for sale. The Wytronn controller comes with everything you need to install and operate.