Computer Hardware

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Computer Whitescreens


Document Cameras

The DC-120 Ladibug from Lumens works very well. I looked up the software online, downloaded it, and it worked right away. It cost $48 used, including postage. 

Power Supply

  • The Thinkpad X1 dark silver laptop 65Watt, 2.3amp at 20volts.
  • Light silver THinkpad 65 watt, same.
  • Dell Latitude 7420 130 watt 6.7 amp. But it seems the 65 watt works too. It's probably even better. Dell has an article on charging units here.
  • The small wall adapter has 20V, 2.3amp.
  • The transformer output amperage must be greater than or equal to that required by the laptop, or, put differently, the output wattage must be greater than or equal to that required by the laptop. See Askleo.com.

Headsets