Somethings to look out for in addition to our upgrade guide (published on Weds 22nd Oct):
> When buying an SSD model, take note that it's SATA or PCIE. PCIE is 2x faster than SATA. Only models with M.2 pre-fitted will be supported with an M.2 bracket. We will not provide upgrade support for models purchased without M.2 initially sorry.
> M.2 slot supports up to PCI-E 4x cards (like XP941)
> Only one of the drive bays has an optional M.2 slot. Both have SATA ports. You cannot run 2x 2.5" SSD + M.2 for example, but you can run 2x 2.5 inch or 1x 2.5 inch + 1x M.2. (The G771 can run 2x 2.5" + M.2 however!)
> The left drive bay (when flipped over) with both M.2 + SATA ports is the primary.
> Optical drive is held in by a single screw and uses a standard mobile SATA port.
> Remember to buy DDR3L (1.35V memory) when upgrading.
> You only have access to two SO-DIMM slots, so if you want to max out your memory (32GB) you have to buy a 16GB model to start with.
> You do not have access to the WiFi module.
> GTX 860M model is the only one with touchscreen.
> All models use IPS Full HD displays. 120/144Hz displays are supported over HDMI/DP (VG248Q for example).
> Four display outputs can all be used at once: laptop display + HDMI, DP and d-sub together.
> Each suffix-SKU (-DS/-CH/etc) spec is decided by country/retailer, not ASUS - please contact them, rather than ASUS, to confirm specific spec details. "what memory?" "what SSD?" etc
