The MSATA and NGFF SSD cannot work at same time. The adapter only work for B-key or B/M-key socket NGFF SSD, cannot work for M-key NVME SSD. Insert both M. 2 mSATA SSD on the PCBA, M. 2 SATA SSD is the first priority. mSATA SSD won't work. Build in Mini PCI-e 52Pin Female connector, Build in M. 2 (NGFF) B key Female connector. 2.5" SATA
SSD Form Factor: 98 x 65.5 mm, 3A maximum output current.