The Guru of 3D checked out the ASUSTOR 12-bay all-M.2 NVMe SSD NAS
A quote from the article:
ASUSTORs new Flashtor lineup currently includes two models: the Flashtor 6 (FS6706T) and the Flashtor 12 Pro (FS6712X). At the core of the Flashtor series is the ability to accommodate up to 12 PCIe 3.0 M.2 slots, exclusively dedicated to NVMe SSDs. Combine that with a 10 Gbps ethernet jack and you'll have the fastest NAS ever.ASUSTOR 12-bay all-M.2 NVMe SSD NAS Review