Building on the success of its Karbon®-CL line of PCI Express frame grabbers, BitFlow, Inc. (Woburn, MA) has introduced the model CL4-F featuring interfaces for two independent base, medium or full CameraLink (CL) digital video cameras. Two independent channels with separate trigger signals allow the CL4-F to acquire from two different CL cameras asynchronously, whether they are linescan or area cameras in monochrome or RGB. Alternatively, it can be configured with a single trigger to simultaneously control both cameras. It provides a full set of camera control signals and sync inputs for each connected camera, and acquires data up to 160 bits at 85 MHz pixel clock rate and DMA at data rates up to 2.0 GB/S. Truly plug-and-play, the CL4-F uses a x8 PCI Express bus interface and uses standard CL cabling. Simply load the included software, plug in the cameras and begin acquiring images. Its CamEd GUI enables either fixed or variable size images to be acquired, plus features a programmable Region of Interest (ROI) sub-windowing capability.