Will the YN568EX flash work on my Nikon D70s?

I'm looking at the Yongnuo YN565EX for nikon and the YN568EX model. The latter model supports shutter speeds of up to 1/8000. Will the d70s work with the 568 high speed sync?

If they say they have the mounts for Nikon, it will work.

There's absolutely no reason you would EVER need 1/8000s shutter speed, even though your D70 can do it. It sounds good on paper, but is of no real use for actual photography.

The feature is called High Speed Sync, which means the flash goes into a very high rate strobe mode which gives the illusion of constant light, allowing the flash to give some (very reduced) illumination above the max sync speed of the camera. Your guide number drops drastically, from approximately 50 meters that flash is capable of, to 3-5 meters, in HSS mode. Couple that with the very high shutter speed, and you get a black photo.

HSS is useful for some work, but since the range of the flash is greatly reduced, it isn't good for near as much as most people think. It helps in outdoor portraiture on a sunny day, but not much else. This is not how you do high speed photography of things like balloons bursting or bullets leaving a barrel. Quite the opposite actually.