Berkeley Nucleonics AWGs can synchronize up to 4 units using dedicated clock input and output connections, providing a maximum of 32 analog channels and up to 128 digital channels depending on model and license configuration. Compatible models include the 670C, 675, 685, 685C, and 686. Synchronization maintains phase-coherent output across all channels by distributing a common clock reference. This multi-unit capability is essential for applications requiring large channel counts, such as MIMO radar simulation, phased array testing, multi-axis motion control, and parallel device characterization.