Stick with a quality AC adaptor for a safer & smarter source of power for your laptop. A:6.3 3.0 B:6.5 4.4 C:5.5 2.5 D:5.5 2.1 E:5.5 1.7 F:5.5 3.0 G:4.8 1.7 H:4.0 1.7. Connector Sizes (mm) Short Circuit Protection.
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