Would this cable support a 34” monitor (3440x1440p) @ 144hz?

Yes, the DisplayPort to DisplayPort cable supports 34” monitor (3440x1440p) @ 144hz.

Where is the vesa certification for this cable? can't find any certification record on displayport's official website.

As another person stated and despite the company's assertion this is not VESA certified and incorrectly has PIN 20 connected which can cause power to flow between your monitor and graphics card which in my case caused my computer to stop POSTing unless the cable was unplugged or the monitor was powered off.

I have a aoc g2460pqu 24" 1ms black/red extreme professional 144 hz gaming led monitor, 1920 x 1080 should this cable work on it i get no signal ?

While I am not familiar with the hardware you are connecting this cable to, this is not a definitive answer. First, check that your monitor is set up to actually scan for the active input port when powering on. With some. you can set it as the default. The Source Device end can be another story. On some computer equipment, you must make certain that Thunderbolt port capability is enabled in BIOS/CMOS setup. Also the OS video controls should be enabled an the drivers present. The most common solution I heard/read to the 'net has ben to power EVERYTHIND down and disconnect it from all AC power for a while. (I've even heard a ludicrous suggestion of 24 hours.) After that time, Power up your monitor and then the computer/game device. Theoretically, they should start communicating with each other. if not, call your computer tech support. They can help you resolve the issue. In any case,. The last thing I would blame it the cable. - pope this helps...

ASIN	B07ZF6PSFP
Best Sellers Rank	#1,746 in Computer Cables & Interconnects
Brand	JSAUX
Cable Type	Display Port
Color	Grey
Compatible Devices	Laptop
Compatible Phone Models	No Compatible Phone Models
Connector Gender	Male-to-Male
Connector Type	DisplayPort
Data Transfer Rate	32400 Megabits Per Second
Date First Available	October 22, 2019
Frequency	240 Hz
Indoor/Outdoor Usage	Indoor, Outdoor
Item Weight	4.6 ounces
Item model number	7904e79c-30bb-44ac-a4f4-df0dfb1e58da
Manufacturer	JSAUX
Number of Items	1
Number of Pins	20
Outer Material	Nylon
Product Dimensions	78 x 0.2 x 0.2 inches
Recommended Uses For Product	High-resolution display connection, gaming, professional visual work
Special Feature	Braided, Data Transfer, High Speed, Tangle Free
Specification Met	UL
Unit Count	10.0 Feet

DisplayPort Cable 1.4 10ft, 8K DP Cable | 8K@60Hz, 4K@144Hz, 2K@240Hz 2K@165Hz | HBR3, 32.4Gbps, HDR10, FreeSync, G-Sync for Gaming Monitor Graphics Card TV PC Laptop -Grey

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