Mitsubishi FREQROL FR-SGJ AC Spindle Controller FR-SGJ-2-7.5K. Item: AC spindle controller/drive. Brand: Mitsubishi Electric (FREQROL series), Made in Japan. Model: FR-SGJ. Type label shows FR-SGJ-2-7.5K with a faint suffix (-B?; appears B1 or BL; assumption). Additional tag: BN420U 244, Unit C, Serial 2Z0032. Features visible: front 7-segment display with push buttons, alarm-code list on cover, multiple plug-in blue connectors, terminal block with cut wire leads, metal chassis, rear cooling fan. Condition: used. Scuffs, scratches, and wear on housing; some label wear; dust from prior use; cut wires at the terminal block. See photos for exact condition. Included: controller unit only as shown. No cables, manuals, or other accessories. Typical use: replacement spindle drive for CNC/industrial machine tools. Buyer should confirm part numbers and compatibility for their application.