An M.2 type enclosure can be used as a bootloader. Instead, NVMe probably won't work properly. (Did it go well?) Syno's original boot device is MLC-based Sata DOM. The current TCRP img file is created identically to the partition structure of this Sata DOM. To use the enclosure as a stable bootloader: Please use the M.2 SATA NGFF SSD shown below. Most TLC-type SSDs are less durable than MLC, but they are much more durable than USB sticks.     Recen