Brand Name: LZUMWS High-concerned chemical: none Compatible Brand: For Lenovo Part Number: 123 Output Voltage: 20V Origin: Mainland China Item Type: Power Adapter Output Current: 2.25A Model Number: SA742-4017 Plug Type: EU Certification: CE Certification: FCC Certification: RoHS Package: Yes laptop input or adapter output: 20v 2.25A plug size: 4.0*1.7mm working for: for LENOVO ideapad 310 320 320s Choice: yes semi_Choice: yes