LENOVO 聯想 65W 原廠變壓器 ThinkPad X1 Helix T431s T440 T440P T440S T450s T450 T460 T460s T470 T470s T470p T450s T540P T550 T560 W540 W550s T460s X240 X240s X230s X250 X260 X270 M490s V330-15ibk V510-14ikb V510-15ikb V720-14 300-14isk 500-15isk 500s-13isk
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