Over 2 weeks ordering and trying to build this thing... 3rd time was the charm for getting the right RAM combination ordered, sent wrong (lack of description clarity), shipped back, sent again, wrong shipped, finally the right set arrived.  Yes, this is partially my fault.But, finally with all components ready to assemble...There is no second M.2 port for 1 TB SSD???  But why would I think there was?  Because every review I read or watched, would not have put a SSD "behind" the Optane Memory, only a HHD "behind" it.  So why would I possibly think if there is Optane Memory included, there would not be a "second" M.2 port for an additional M.2 SSD to be added!?The description says- 7th Generation Intel Core i7-7567U- Intel Iris Plus Graphics 650- 16 GB Intel Optane memory accelerator preinstalled (DDR4 memory is required and must be purchased separately). Intel Optane memory automatically learns your computing behaviors to accelerate frequently performed tasks- M.2 22x42/80 (key M) slot for SATA3 or PCIe X4 Gen3 NVMe or AHCI SSD- 2.5" SSD/HDD bay. Thunderbolt 3 (40 Gbps), USB 3.1 Gen2 (10 Gbps) and DisplayPort 1.2 via USB-CNo where does it say, Optane Memory is IN the only M.2 port in the device.  If I wanted additional HDD "behind" the Optane, great... but not why I went with Optane Memory.And as for the 128 GB SD card I ordered.... well I guess I'll be sending that back.  Only a microSD slot.Seriously, there is not a lot of optionality to this NUC, which in additional to its form factor is why I decided on it to be my primary computer and purchased it.  I was dreading the Windows 10 install... as with Optane, that's a whole 'nother issue in itself... but form factor and very limited options "won" that decision process too.So frustrated with this entire process, might just send the entire $800+ setup all back.... even though the NUK will be going back because there is no Optane Memory plus SSD memory too option. :|