What a horribly stupid move by them... Yeah it makes it easier (cheaper) to assemble but ya'd think that the s17 fiasco would have taught them a lesson
Or they have long-term contracts with their repair employees and they want to make sure they get them working 10 hours a day for the remaining span of the contract lol.
Alas, Bitmain and their never-ending drama, make the same miner with 4-5 different control boards, change the PSU style for every slight change to the same miner they make, and use $2 solder on a gear you sell for $4,000, just the typical Bitmain.
Do not buy the s19j Pro+
S17 are flaky and notorious for heat sinks coming loose.
I learned my lesson after losing a lot of money on the 17 series, I am no longer willing to risk anything with Bitmain, for all I know, they could start shipping the other models that had the large bolt-on heatsink with the stupid single soldered heatsink the movement they run out of those large heatsinks, since I can't verify how my batch is going to look like, I rather not touch anything Bitmain related as long as there are other more reliable options.