Let me try to address some questions I know: (1) Standard cooling is fan, Advanced cooling is liquid  (2) Indeed 2 x M.2  slot available so you can add an extra NVME beside the one shipped from DELL (3) There are four SATA ports available, one for DVD and three for HDD. Two HDD bays are available but you need to have blue plastic cabby to hold the 3.5 inch HDD. One cabby is provided in the box. The other you have to buy somewhere else.  Each bay has one power cable with 2 inserts so in theory power is good. There is a standard DELL 2.5 inch to 3.5 inch blue cabby convert which can hold two 2.5 inch SATA SSD in one single 3.5 inch HDD bay so you can maximize the SATA HDD/SSD to three or even four (I saw one post replacing the DVD drive with a fourth SSD by using the DVD SATA port). Also you will need to buy the retangular SATA cable, especially for the 3.5 inch HDD, otheriwse the case can not be closed. For 2.5 inch SSD, as they are "deep" in the cabby, you will need "straight" SATA cable to connect SSD. In my case, I did not buy any HDD from DELL, but the first blue cabby, one retangular SATA cable and 2 power cables are pre-installed. (4) Blu-Ray, no idea, guess if you can find the same form factor, should be easy to replace. (5) No disc. All pre-installed.  You can download driver etc. from DELL website. (6) Big or small inside, depends on what do you want to do.... for SDD/HDD/DDR5, easy, but if you want to change / add PCI-e card, the bulky 3070i video card give you much less space on the slots. Hope it helps.
What is the difference between Standard CPU Cooling and Advanced CPU cooling? I want to clarify the number of storage drives I can have. The manual says, "Your XPS 8950 supports up to two 3.5-inch hard drives + up to two M.2 2230/2280 solid-state drives". So if I get the XPS 8950 with dual drives (SSD + 3.5-inch HDD), I can add another 3.5-inch HDD and another SSD, right? (Total = 4 drives) I'm asking because I want to make sure the connections aren't disabled on the motherboard. The specs say that the Optical Drive is a DVD Drive (Reads and Writes to DVD/CD). Can I upgrade to a Blu-Ray drive? Does it come with discs? (Windows, drivers and any software I may have added to the PC?) For those who already purchased the XPS:Is it really tight inside the case? How hard is it to work in there when you add or change some hardware? I hate the smaller cases because everything is so compacted. And finally...Why doesn't Dell sell full-size towers anymore? I was going to buy an Alienware Aurora just because I like a tower with room, but it only comes with F-series processors, which I don't want.   I'd appreciate any info you can give me. Thanks.
A few questions about XPS 8950 options