Just another check mark in the Yongnuo list, as I've had my Yongnuo YN568EX for a year now, and it's never let me down! You can use it for high speed sync if needed, and although to date I have only got a single speed lite, I'm thinking of buying another. Just not sure on the other accessories needed to operate two or three flashes at once, so I'll do my homework on that, and eventually be set. I have seen a couple of Youtube video's on doing this, so I should check them out again, to get a good feel for what's needed, but I'm happy with all that this particular unit gives me. I would assume I could buy all the equipment needed for less than what the single 'high end' Nikon would go for?