I'm drawing a blank when it come to this. We need to upgrade some end of life 3524 switches. I need to find out what SX or LX gigabit cards we have in them. I know there is a way to tell what type of cards you have in the switch through IOS but I can't seem to find it. I don't want to pull the card out as this will cause an outage that we can't have. Help please. Thanks.