I was in a rush and needed a new cable quick. I did a quick hunt around Amazon since I have Prime shipping. Found these flexible cables by WORKHORSE GEAR of Santa Monica CA. I wanted something not too terribly long that would work with my on camera monitor. I use a VideoDevices Pix-E5 and sometimes an Odyssey 7Q with various cameras. These pics show the PIXE5 on a Sony FS700 just for example. (Yes I know it doesnt record the 4K RAW but it can get a good 12 bit 422HQ signal from SDI for the 1080 options)
So, back to the cables. I ordered 2 to try them out, both the 24" BNC. One with two straight BNC and the other with a straight and an angle BNC. The 2nd works great with the PIXE series as you can see in these photos. I would recommend the double straight for a Convergent Design Odyssey 7Q and 7Q+ monitor depending on what camera you use it on.
The cables are very well made and come with a one year warranty. So far I have not had any issues with them after about 2 weeks of having them and 3 shoots. Just thought I would share my experience so far. If you would like to pick some up follow my links to Amazon below.
Also try this longer 36" version with 2 right angles