could anyone tell me what is the chip used in this device ?

in product specification not mention any type of this information like how many hashboard it has or how many chip is used in this . not even the frequency .

but i found a picture in product manual , but I'm not sure it's correct or not .
https://postimg.cc/LgLSvhRK

in this image i see 4 hashboard , each has 104 chips that works in 550 MHz frequency .

please let me know if this info is correct or not . and if you know what is the difference with S19 Hydro 3950$ with same amount of the hashboard and chip with little more frequency 600MHz .

https://postimg.cc/RNCdmy6K

is S19 Hydro use another type of the chip ?

please let me know what you think ? i am interest to but more than 100 pcs and if anyone want's 1 or 2pcs , i'll be happy to sell you when i get my shipment .