TS-873 | Affordable high-end AMD RX-421ND quad-core NAS with PCIe slots for adding M.2 SSD, 10GbE connectivity or a graphics card | QNAP
1TB SSDnow NVME M.2 2280 SATA 6GB Compatible with QNAP NAS Servers TS-873 by CMS D95 - Computer Memory Solutions
TVS-1282T3 - M.2 Drives not Seen - QNAP NAS Community Forum
Install M.2 SSDs
QNAP Dual M.2 PCIe SSD expansion card; supports up to two M.2 2280/22110 formfactor M.2 PCIe (Gen3 x4) SSDs; PCIe Gen3 x4 host interface; Low-profile bracket pre-loaded - Newegg.com
QNAP TS x53Be + 3rd party PCIE NVMe card extension - QNAP NAS Community Forum
QM2-2P410G2T | 2 x M.2 PCIe Gen4 NVMe SSD & 2 x 10GbE ports expansion cards | QNAP (US)
Amazon.com: QNAP Dual M.2 SATA SSD to 2.5” SATA RAID Adapter Converter - 2 x M.2 2280 SSD to 3.5” SATA Adapter with RAID Support for PC and NAS. (QDA-A2MAR) : Electronics