NOTE:
The power supply is 20V 1.5A out and the DC plug is 4.0X1.7mm, pls check the specs of your own charger for compatibility.
Specifications:
Product Type: AC Power Adapter/Charger
Model Number: PA-1300-42 ( US Plug )
Part Number: SA18C47124/SA18C72851/SA18C57982
AC Input: 100-240V~ 1.4A (for worldwide use)
Operating Frequency ‎:‎ 50-60Hz
DC Output: 20V-1.5A
DC plug size: 4.0mm*1.7mm
DC Cable Length: 1.5 Meter

Compatible With:
Lenovo Smart Assistant - Type 90GX
Lenovo Smart Assistant Infinity Edition - Type 90GY
Lenovo Smart Clock 1st Generation (CD-24501F) - Type ZA4R
Lenovo Smart Display 7 (CD-17302F) - Type ZA5K
Lenovo Smart Display 8 (SD-8501F/SD-X701B/SD-X501F) - Type ZA3N
Lenovo Smart Display 8 (SD-8501F/SD-X701B/SD-X501F) - Type ZA3R
Lenovo Smart Display 8 (SD-8501F/SD-X701B/SD-X501F) - Type ZA4T
Lenovo Smart Display 10
Lenovo Smart Frame (CD-3L501F) - Type ZA6G

Package Content:
AC Adapter *1