Product specifications & High charging efficiency: Output: 9V DC 21A, OD/ID: 5.5/2.5mm. Input: 100-240AC. Internal negative. 9V/2A electronics power supply with 6.6FT have a long enough charging cable to ensure that the user can freely charge without being restricted by location,bringing a convenient and comfortable experience. Excellent safety performance: High security to protect user safety: 9V/2A AC Adapter electronics are put through rigorous quality control procedures to ensure safe, reliable operation for years to come. Whats more, our products have passed FCC testing and obtained relevant certificates, and include numerous safety mechanisms, including protection against short circuiting, overvoltage, overcurrent, and internal overheating. Small and lightweight for convenience, portability and storage. Excellent compatibility: DYMO LabelManager LM-160 LM-500TS 500TS 1790417 ( touch ) 100 150 155 160 210D 220P 350 160, 210D, 220P, 350, 400, 450, 500, LM 160 LM 500TS LM450