Reasons for the high price of NVME hard disk box:
The main cost comes from the main control chip. Currently, only JM company produces the main control chip of NVME to USB in the world. Because PCI NVME is a high-speed interface, it has high requirements for the master chip, which is similar to a small CPU. The R & D cost invested by the chip company in the acceptance period is high, so JM has a high price for this chip!