A laptop I am considering (Lenovo Thinkpad P52) has a USB 3.1 power delivery port (type A not C) . Question: can this port be used to connect regular devices like USB drives or even a video capture device? Will the 'power delivery' function interfere with the device's functionality?
[SOLVED] USB 3.1 Power Delivery port
- Thread starter pesi
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Solution
Didn't scroll that far down though. 
Hmm... looks like Lenovo either have:
* made a mistake on their specs page stating that Type-A has Power Delivery feature
* that Type-A port is actually USB BC 1.2 port (Battery Charger)
* or they use an unofficial pin configuration in the Type-A port to get Power Delivery feature in it
Official Type-A port doesn't have the necessary pins for Power Delivery feature. Only Type-C port has the needed pins for Power Delivery feature. Here's a good video about USB Power Delivery to watch,
youtube: https://www.youtube.com/watch?v=Uuh0tRLANpc
Hmm... looks like Lenovo either have:
* made a mistake on their specs page stating that Type-A has Power Delivery feature
* that Type-A port is actually USB BC 1.2 port (Battery Charger)
* or they use an unofficial pin configuration in the Type-A port to get Power Delivery feature in it
Official Type-A port doesn't have the necessary pins for Power Delivery feature. Only Type-C port has the needed pins for Power Delivery feature. Here's a good video about USB Power Delivery to watch,
youtube: https://www.youtube.com/watch?v=Uuh0tRLANpc
- Mar 21, 2015
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According to the official specs,
link: https://www.lenovo.com/us/en/laptops/thinkpad/thinkpad-p/ThinkPad-P52/p/22WS2WPWP52
it has "Power Delivery" function on it's Type-C port and not on Type-A port. Type-A port is regular (square) USB port and you can connect any standard USB device to it.
Type-C port (round one, aka Tunderbolt) comes with plenty of features over Type-A port. For Type-C DRP/DRD (Dual-Role-Power/Data) port (which this laptop has), USB Power Delivery introduces commands for altering a port's power or data role after the roles have been established when a connection is made.
link: https://www.lenovo.com/us/en/laptops/thinkpad/thinkpad-p/ThinkPad-P52/p/22WS2WPWP52
it has "Power Delivery" function on it's Type-C port and not on Type-A port. Type-A port is regular (square) USB port and you can connect any standard USB device to it.
Type-C port (round one, aka Tunderbolt) comes with plenty of features over Type-A port. For Type-C DRP/DRD (Dual-Role-Power/Data) port (which this laptop has), USB Power Delivery introduces commands for altering a port's power or data role after the roles have been established when a connection is made.
If you see the tech specs (with the diagrams) at this URL: (scroll down to the tech specs with the parts diagrams)...
It shows a USB 3.1 port on the left of the laptop - labelled 9 which says it is with power delivery. This does not look like a USB C port (I am aware of the differences). It is this 3.1 port that I was asking about.
Thanks.
It shows a USB 3.1 port on the left of the laptop - labelled 9 which says it is with power delivery. This does not look like a USB C port (I am aware of the differences). It is this 3.1 port that I was asking about.
Thanks.
- Mar 21, 2015
- 11,831
- 1,675
- 80,390
Didn't scroll that far down though.
Hmm... looks like Lenovo either have:
* made a mistake on their specs page stating that Type-A has Power Delivery feature
* that Type-A port is actually USB BC 1.2 port (Battery Charger)
* or they use an unofficial pin configuration in the Type-A port to get Power Delivery feature in it
Official Type-A port doesn't have the necessary pins for Power Delivery feature. Only Type-C port has the needed pins for Power Delivery feature. Here's a good video about USB Power Delivery to watch,
youtube: https://www.youtube.com/watch?v=Uuh0tRLANpc
Hmm... looks like Lenovo either have:
* made a mistake on their specs page stating that Type-A has Power Delivery feature
* that Type-A port is actually USB BC 1.2 port (Battery Charger)
* or they use an unofficial pin configuration in the Type-A port to get Power Delivery feature in it
Official Type-A port doesn't have the necessary pins for Power Delivery feature. Only Type-C port has the needed pins for Power Delivery feature. Here's a good video about USB Power Delivery to watch,
youtube: https://www.youtube.com/watch?v=Uuh0tRLANpc
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