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I would like to use the Dell 24 UltraSharp Monitor: U2415 to charge my laptop which has a USB 3.1 type C port.

The monitor does not have a USB 3.1 port itself but offers the following connectivity ports:

  • 2 HDMI(MHL) connector
  • 1 Mini DisplayPort
  • 1 DisplayPort (version 1.2)
  • 1 DisplayPort out (MST)
  • 5 USB 3.0 ports - Downstream (5 at the back, 1 with battery charging)
  • 1 USB 3.0 port - Upstream

Will I be able to charge my laptop through any of the monitor's ports (given that I use an adapater cable such as USB 3.1 to HDMI)?

  • What happens when you try it (on the charging port)? You won't damage anything, and your laptop's battery status monitor will show you if it's charging or not. If it's receiving reduced current, it may charge when idle or sleeping, but slowly discharge while in use, depending on its load. Use a 3.1 lead, which should have lower impedance. – AFH Dec 18 '17 at 16:38
  • @AFH I don't have the monitor yet. Thinking of buying it – horen Dec 18 '17 at 16:41
  • A quick check says that 3.0 and 3.1 have similar power delivery specs, so my comment about the lower impedance cable probably isn't relevant, but as Ramhound says you can't use an HDMI converter cable. Maybe you could try another 3.0 device, such as another machine with a 3.0 port or an early USB3 charger. – AFH Dec 18 '17 at 16:53
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Will I be able to charge my laptop through any of the monitor's ports (given that I use an adapater cable such as USB 3.1 to HDMI)?

You cannot charge your laptop over HDMI/DisplayPort or USB 3.0 connection. As for the reason, if you use a converter, then you lose the pins that make it possible to charge your device over Type-C in the first place.

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