Onyx Deskset Product Maintenance Agreement (PMA)$260.00 The Onyx Deskset Product Maintenance Agreement (PMA) extends the manufacturer’s two year warranty by adding an additional two years. Onyx Deskset Product Maintenance Agreement (PMA) quantity Add to cart Category: Warranties, Etc Related products JAWS Professional Service Maintenance Agreement (SMA) $370.00 Add to cart ZoomText Magnifier/Reader Service Maintenance Agreement (SMA) $200.00 Add to cart Fusion Home Edition Service Maintenance Agreement (SMA) $310.00 Add to cart