The IN507, Dual HDMI and VGA Input Board Assembly is a Series 500 input board compatible with all Series 500 enclosures, such as the PS510 and PS550. This board is used to connect audio-visual source devices using the HDMI and VGA connector standards. Installation of the IN507 is quick and painless. The IN507 is a hot swappable card. To install the card, simply remove the single mounting screw that holds the IN500 Future Expansion Plate or other card where you plan to install the IN507. After removing the old plate, insert the new IN507 assembly. With proper alignment less than 1 foot pound of pressure is required to insert the card. Replace the screw to ensure the card is securely mounted in the chassis. Once installed, the system automatically recognizes the new board. No further activity is required. However, in some cases, it may be necessary to adjust the audio input trim to a nominal input level. See the Installation Manual for more details regarding audio input adjustments.