R7 mobo chipset has gen 3 PCIe.  no need to get the most uptodate gen 4 nvme ssd unless you plan to buy an Alder lake based system soon.  One of the recommended gen 3 nvme ssd 1-2 tb is WD Black SN750 1TB A great NVMe SSD at an attractive price
I was wanting to upgrade the SSD  for my Alienware Aurora R7 desktop.  I'm happy with the computer, but the 256GB drive is just not large enough. So I was hoping to upgrade to a 1 or 2TB SSD drive and was hoping for guidance on compatible internal drives to replace my current 256GB SK Hynix PC401 NVMe drive. Thanks, Evan
Aurora R7, want to upgrade my 256GB SSD