adapter , Suitable on 10.5V 1.9A adapter,laptop adapter,power adapter,ac adapter,universal adapter,travel adapter,ac dc adapter,wireless adapter,Suitable on 10.5V 1.9A 2prong / 20W/ Φ4.8×Φ1.7 adapter,laptop adapter,power adapter,ac adapter,universal adapter,travel adapter,ac dc adapter,wireless adapter,