Questions about ASUS ROG Strix Z690-E Gaming Wifi

Depends on what you mean by SSD slots, broadly speaking there are two different ones. The SATA SSDs (e.g. Samsung 870 EVO (1000 GB, 2.5")) and M.2 SSDs (Samsung 980 Pro (2000 GB, M.2 2280).). This mainboard supports 6x SATA and 3x M.2 SSDs (or these connections are available).

We can't find any history mentioning AM5, so it may have been another product. This is a Z690 motherboard, so compatible with Intel with LGA 1700.

Exclusively DDR5 modules. I only got 2 RAM modules "to work" at 5600 MHz. With 4 RAM modules, the system only ran reasonably stable at 4000 MHz. I would therefore recommend buying only 2 modules.

Unfortunately not, this is what the card supports: DDR5 4800, 5000, 5200, 5400, 5600, 5800, 6000, 6200, 6400 MHz.