DSX840GA 25M DSX840GA 25MHZ DSX840GA 27.000MHZ DSX840GA 30.000MHZ DSX840GA 36.000MHz DSX840GA 36.864MHZ DSX840GA 42.000MHZ DSX840GA 8.192MHZ DSX840GA(11.9908MHZ) DSX840GA(12.288MHZ)