Pros: Fast delivery, fit like a glove, and worked right out of the box with no problems whatsoever - even in my E510 machine, which can be very stubborn.

Cons: No "cons" at all.

Overall Review: I've read posts where so many people seem to have problems with dead sticks out of the box, but I have never personally experienced one. Just remember how fragile they can be where static is concerned. Rubber gloves are cheap. Keep some on hand for handling these types of components.