Zaber motorised rotation stages with built in controllers daisy-chain with other Zaber devices. This reduces cable clutter and allows you to control multiple devices from a single RS232 or USB port. Up to 254 devices chain to one port. Built in controllers also reduce the cost and size of the device. The free Zaber software allows you to send single commands or complex sequences. It automatically recognises all your devices and allows you to communicate with each. This software is available in popular languages including LabView, Visual Basic, C#, Excel, Qbasic and C. Most models also have a manual control to allow you to position your device by hand.