Satpro.tv carries SW21 switches, DISEqC switches, basically all Satellites Multiswitches the board; you'll find a wide selection of these products from various manufacturers in our inventory. Knowing the business as completely as we do we have what you need to accomplish your job. The DISEqC switch "stand-by" commands, backwards compatibility with "tone burst" and one output for receiver with DISEqC commands function. Depending on your needs, be sure to check out the other features and differences between the switches to determine which one suits your needs.