K50B K50B60D1 K50-C1E3.6864MR K50C550 K50-CLS-E K50-CLS-E15.3600MR K50-CLS-E-15.3600MR K50-CLS-E15.36MHZ K50-CS0-SE14.3182M K50-CS0-SE14.3182MR