0100-01774 PCB ASSY 300mm QRG。0100-01774 PCB ASSY 300mm QRG。0100-01774 PCB ASSY 300mm QRG。QSC Part - PCB ASSY,NEG STEP DRVR,EX/MX/PL SERIES,,SMT - QSC Spare。。-New parts (Not used)0100-01774 PCB ASSY 300mm QRGIt can be used for 200mm QRG without any modifications and setting changes.-Domestic shipping only-No warranty-No any claims are accepted