A:AnswerI own 3 of these cards, and all 3 cards have had the good fortune of being Samsung modules. I say good fortune because they can be clocked higher than cards that have micron modules, at least from my experience when compared to my previous EVGA black edition. But just like most things in the tech industry, how your card is manufactured is a lottery. You could potential get an ASUS Strix card that was built with micron chips, or in some cases, you could buy two of the same card and still have the chance of 1 of them being Samsung or micron. A Schrödinger's cat if you will, as you won't know the until you have installed them, and verifying the module used in a handy utility like GPU-Z.
A:AnswerThis card is 305mm long. The full tech specs can be found here. https://www.asus.com/us/Graphics-Cards/ROG-STRIX-RTX2080TI-O11G-GAMING/specifications/
A:AnswerAs far as I can tell, ASUS has a larger yield of Samsung chips. I've yet to get a card with micron memory modules. I have experienced the problems associated with Micron chips in the past, in the EVGA Black edition 2080 Ti, but not with the Strix. It would be safe to assume that micron has fixed the issues with their modules, considering NVIDIA is still using them in their founders cards, and they can be found among the "entry level" SKUs from AIB partners (EVGA Black Ed., MSI Ventus, ASUS Turbo to name a few). If you want to avoid them all together, Samsung chips are commonly found on ASUS Strix, EVGA's FTW, and MSI Trio models.
