Ubiquiti's UACC-SDD-TRAY provides an optional storage insert for the UCG-FIBER. It houses one 2230, 2242, 2260, 2280, or 22110 M.2 NVMe SSD. The Cloud Gateway Fiber supports the M.2 NVMe with PCIe Gen 3x2 lanes. All M.2 NVMe SSDs are compatible, but will be limited to Gen 3x2 performance.