QX70 OTDR MM SM Built In OPM VLS 850 to 1625nm w/ Launch Cables QX70MS-KIT Please see QX50MS This OTDR kit is for all bandwidths. You can test either MM or SM. 850/1300/1310/1490/1550/1625 Comes with 500M OM3 LC/UPC-LC/UPC launch cable and 500M OS2 SC/UPC-SC/UPC launch cable.