Use an M.2 PCIe NVMe SSD in a U.2 PCIe NVMe SSD drive bay for PC and NAS (PCIe 4.0)
Use an M.2 2280 (M key) PCIe NVMe SSD in a U.2 PCIe NVMe SSD drive bay (M.2 SSD sold separately).
Up to PCIe 4.0 x4 file transfer speeds.(Compatible with NVMe PCIe 3.0 for M.2 SSDs and U.2 drive bays)
Please carefully read the notes in the product description page below. Specifications are subject to the official information published on the QNAP website.