Regaridng this card:
Sapphire | Pulse RX 5700 XT | 254 | 135 | 46.5 | Recessed power connectors | Yes† |
I tried to install it in the v6, but it is almost impossible to install. It is mentioned that installation is difficult, but I would like to emphasize how difficult it is.
It is 135mm at the back, and being also rather wide (2.3 slots) it is simply not feasible to get it inserted into the PCIe slot.
As comparison, with the PowerColor Red Dragon (132mm, 2 slot), you could start inserting it angled with its top toward the bottom of the case, and you had enough space to get it inside the PCIe slot rather easily, but this is not possible with this Sapphire: even with its top touching the bottom of the case, its bottom is touching the bottom of the PCIe slot, but you don't have the space to get it to the top of the PCIe slot so that you could slide it in. So there is no way really to get it installed with the motherboard being screwed to the case.
So, not seeing any reasonable way to install it, I ended up returning it. FYI for everyone who is considering this card.