I have just bought an ASUS Zenbook flip s, refurbished, and the storage it says it has on the specs is a 1TB PCIe NVMe M.2 SSD. It is supposed to arrive in a couple of days. When I get it, I am thinking of taking the existing drive out and replacing it with a blank 1TB PCIe NVMe M.2 SSD, and then installing openSUSE on that, and not having Windows at all, no dual boot, pure Linux. That way if there is a hardware problem, I can put the original it came with back in and send it in on warranty, and they can't say anything. After the warranty runs out I will have an extra drive. It's a bit of an extra expense, but probably worth it to me. So as I am looking at the various 1TB drives available with the M.2 form factor, I see several options. Some say V-NAND technology, others say 3D NAND, and some say speeds up to 3470 MB/sec and others 2400 MB/sec, and others don't mention speeds. In general I would prefer higher speed, if the other hardware on my new flipbook would support it. But I was wondering if anyone has some experience in buying a replacement drive like this for a laptop or 2-in-1 with the form factor M.2, and if you might have any suggestions on what I should look for. -- George Box: 15.2 | Plasma 5 | AMD Phenom IIX4 | 64 | 32GB Laptop #1: 15.2 | Plasma 5 | AMD FX 7TH GEN | 64 | 32GB Laptop #2: 15.2 | Plasma 5 | Core i5 | 64 | 8GB