This article provides a possible substitute adapter for the obsolete E511842 power adapter.
Some customers have been able to use P/N: E153026: Power Brick,19V/65W, Delta, short plug in place of the E511942 adapter for I-Series 1.0 devices.
This will work as long as you are not using an Ethernet cable or you are not using an Ethernet cable with a boot. See photos below for clarity.
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