Thanks but the point is to make uncluttered desktop setup without additional PSUs/wires.
It does mention that: “USB 3.1 Gen 1 Type-C™/DisplayPort combo port … and supports Power Delivery at 5V, 3A”. This tells me that this particular Type-C port outputs 15W, nothing else.
Yes the manual a bit odd but I still hope it supports Power Delivery for input:
With support for USB Power Delivery, ASUS Chromebox 3 can charge a connected phone or accessory, and can also receive power from a supported display or other device, eliminating the need for a separate power adapter for a cleaner workspace uncluttered with cables.
Yes, I can read now what Asus page wrote there but still doubt that this is possible. I think that actually the E13655_CHROMEBOX_CN65_EM_WEB.pdf manual tells us the truth. This Type-C might be easily the one that blocks any kind of PD input and acts just as normal USB3.1 port (not even as Gen2 port). Please research further on this by yourself (make sure it does support …), I’m just another human, but still unsure that Power Delivery input will work with Chromebox 3 (please note that Chromebox 4 is another generation).
Too late, I already bought it… And I couldn’t find more info so far.
But I’ll report here when it arrives, for sure.
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WITRN PDC003 20V PD cable with E-Marker will help you survive (keep your idea work with DC power connector on Chromebox 3) anyway (here added just in case you might need such cable). Perhaps related DC input already in 5.5×2.5 size as well?
Q: Is there a monitor that can power this by a usb-c while at the same time receiving the video signal from this computer over the same usb-c?
A: Yes. Philips Brilliance 2728. Have single cable set up and is very convenient
Q: How do I use power and video over usb-c?
A: The easiest way to use power and video is with a USB-C hub that supports PD pass through at >60W, though >=80W is best. ioGear has several that meet this requirement and there are many others that should work. Because USB PD is a specification you can use an Apple 87W USB-C power brick with pretty much any USB-C hub and most have a mini DisplayPort and/or HDMI output to connect to the monitor.
In my experience and apparently others have run into the same issue, newer monitors that supply power and video through a single USB-C cable don’t appear to be capable of supplying power in a way that lets the Chromebox boot. Most monitors that supply power over USB-C are targeting the 60W power draw, this is sufficient for laptops since they have batteries to handle spikes above 60W, but may be too little for the Chromebox. There is a 32" Dell that supplies 90-100W, this may be compatible but I don’t have one available to test with my Chromebox.
the 90W is for the i5/i7 (KBL-R models)
Supposedly.
Still I don’t understand math behind this because even in worst case this wattage seems excessive…
From teddit.net: “Haven’t had a lot of time to test this more, but my Dell u4919dw (90W usb-c power delivery) is unable to power up my asus chromebox 3 via usb-c.”
that’s weird, because I can power up mine with a Lenovo 65W one just fine. But USB-PD is still the wild west I guess
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Do you have Chromebox 3?
I have at least one of every generation Chromebox here, including an Asus CB3 with an i7-8550U
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Exactly one that I bought.
So it does have some PD input actually? I had concern it has PD output 15W only but no input…
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all ChromeOS devices with USB-C ports support USB-PD, starting with the 2015 Chromebook Pixel 2.
does USB-PD support always imply two-way powering?
(that should also mean all PD displays can be powered by PD)
I’m not 100% certain if the spec implies that, but all ChromeOS devices with USB-C ports support being externally powered via USB-C PD. I’m not sure how many, if any, support powering other devices via USB-C PD (outside of normal USB3 charging spec)
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Interestingly enough we could measure actual power consumption of Chrome devices using just Suzy-Qable:
https://chromium.googlesource.com/chromiumos/third_party/hdctools/+/HEAD/docs/power_measurement.md
How did you use powerstat tool? It always shows 0W for me on Asus Chromebox 3:
$ powerstat
Running for 300.0 seconds (30 samples at 10.0 second intervals).
Power measurements will start in 180 seconds time.
Time User Nice Sys Idle IO Run Ctxt/s IRQ/s Watts
14:45:43 1.0 0.0 0.7 98.3 0.1 1 1819 884 0.00
14:45:53 1.6 0.0 0.7 97.6 0.1 1 2119 1002 0.00
14:46:03 1.0 0.0 0.6 98.3 0.1 1 1844 850 0.00
14:46:13 1.5 0.0 0.5 97.8 0.1 1 1960 960 0.00
14:46:23 2.4 0.0 0.8 96.6 0.2 1 2319 1149 0.00
14:46:33 88.1 0.0 0.5 11.4 0.0 14 2946 2984 0.00
14:46:43 99.7 0.0 0.3 0.0 0.0 14 2395 2952 0.00
14:46:53 99.7 0.0 0.3 0.0 0.0 14 2441 3024 0.00
14:47:03 99.7 0.0 0.3 0.0 0.0 14 2375 2965 0.00
14:47:13 99.7 0.0 0.3 0.0 0.0 14 2484 3005 0.00
14:47:23 99.7 0.0 0.3 0.0 0.0 14 2284 2923 0.00
^C-------- ----- ----- ----- ----- ----- ---- ------ ------ ------
Average 54.0 0.0 0.5 45.5 0.1 8.1 2271.6 2063.6 0.00
GeoMean 14.3 0.0 0.4 0.0 0.0 4.2 2250.5 1782.4 0.00
StdDev 48.0 0.0 0.2 47.8 0.1 6.5 311.1 1001.8 0.00
-------- ----- ----- ----- ----- ----- ---- ------ ------ ------
Minimum 1.0 0.0 0.3 0.0 0.0 1.0 1819.3 850.0 0.00
Maximum 99.7 0.0 0.8 98.3 0.2 14.0 2945.9 3023.6 0.00
-------- ----- ----- ----- ----- ----- ---- ------ ------ ------
Summary:
System: 0.00 Watts on average with standard deviation 0.00
Note: Power calculated from battery capacity drain, may not be accurate.
I can’t remember, it was quite a while ago that I did it. But I wasn’t using a Chromebook so that might make a difference.