The ATEM-GPITALLY-BO-BOARD ATEM GPI and Tally Interface Breakout Board from SKAARHOJ connects through the 25-pin D-Sub connector port to ATEM GPI and tally interfaces, ETH-GPI Link series, and Blackmagic Design GPI/tally boxes. The ATEM GPI and tally interface provides an easy interface for individual tally lamp control to your ATEM. It features eight sturdy onboard GPI Phoenix input connectors and eight GPO Phoenix output connectors, plus a DC plug for external power. The board features a confirmation LED which lights up when tally is on input 1, and a push button which lets you test the GPI of input 1.