Designed as a retention device to hold PCI And AGP cards in place during shipping for OEMs, they also are very useful for anyone who likes to LAN with their systems. Who hasn't gotten their computer somewhere only to find out that during transport the video card worked loose, and now you can't boot your system. CardKeepers prevent the cards from slipping out of the slot, making them a very inexpensive method of making computer transportation easier and safer.
This model is for extremely short cards. This is for cards between 2" below the bracket and 1 5/8" below the bracket.