The Sled from GPI PRO Systems is the only truly modular sled system on the market! The individual components can be swapped out at a later date for new components with new features. Get the sled you want, your way, without sacrificing upgradeability! No matter how you configure your PRO Sled, you always have separate analog and HD video lines, 12/24 volts and auxiliary power. Here at PRO we pride ourselves on allowing you to build your dream sled the way you want it!