Asmedia ASM-2362 NVMe/USB 3.1 Controller firmware Version 201012_91_00_00

I have An Integral branded Phison PU31 Pro with and ASM 2364 the firmware is as follows

asm_fw_200505_90_00_00_ASM2364

I have a dump with the nvram
does anyone know how i can update it keeping the current nvram intact

I've found this ASM-2364 NVME enclosure quite cheap. It doesn't have any brand.

Do you think it's a good one? Fast (20Gbps)? Reliable? Thermal problems?

www.aliexpress.com/item/1005006075349980.html

Hi, it looks like a good case if it allows the SSD to be cooled well. 

I bought two of them, they work great! Can't beat the price. They have legit ASM2362 IC's in them. I would recommend removing the controller from the unit and adding a thicker silicon pad, the stock one does not make good contact with the IC. I just stacked a blue one out of the kit on the existing one for the ASM2362 but its a little thick. The unit runs warmish but cool.

They have the same firmware as this:
www.silverstonetek.com/en/product/info/storage/MS12/
www.silverstonetek.com/en/ajax/download....W%20201012910000.zip