Can anyone identify this addon cc/cv module on server psu?

[bigjoncoop]

Hey fellaz,

Recently on AliExpress, eBay, etc... I've been seeing these lithium ion battery chargers consisting of a server power supply normally an HP DPS-750/1200 or very similar and they have a module connected on the outside which must be a CC/CV controlling device...

They're littered all over AliExpress. I searched all over Google and github and I can't find anything similar whatsoever.

I've also looked for the module itself for sale anywhere but can't find anything.

I was just able to find a picture of the internals and the PCB. It looks fairly simple. 1 IC, and a couple pots....

If anyone understands how this thing is working or know where to find any information or where to buy one please leave a comment below.