384GB 6x64GB DDR4-2933Mhz PC4-23400 288-Pin LRDIMM Memory for Apple Mac Pro 2019 7,1 by NEMIX RAM

This review is a tale of two "cities." 2 weeks ago, I ordered 12 32Gb memory modules from Nemix for my 2019 Mac Pro. But unfortunately, they didn't work and I was forced to return them. I decided to give the 64Gb modules a try and also to upscale to 512Gb given my workloads.I ordered these modules and two days later received them in the most protective 4-layer packaging you can imagine. That boded well.I installed the memory, which is trivial thanks to the instructions Apple put on the protective covers, and booted the Mac. And from there onward, it was smooth sailing. I ran extensive memory tests, both using Apple's startup diagnostics as well as TechTool and Rember, and several benchmarks to determine system stability. The Mac has now been running 'hot' for 24 hours and everything is great.I'm very happy that this memory works as well as with its price which is significantly lower than buying is from Apple during the BTO process. It's expensive for sure, but if you need it, this is a great buy.

I bought these, installed them, and got that awful blinking orange light. Retried several times, making sure everything is connected properly, and nothing. Still that orange blink (ram error). Not sure if the cards I got are faulty, or what's going on. I also don't know if it's just one card that is not working, or all of them, because the minimum number of cards are 4. Hoping to resolve this with Nemix...

MacPro 2019 buyers beware !The eight 64GB LR-DIMM sticks I received did not work in my MacPro 2019. After a day or two, the computer shut down (orange blinking light) and the log file showed a kernel panic. I tried a number of permutations to see if I could isolate a bad RAM stick - no luck. Running the MacPro2019 on the R-DIMM sticks that it came with it produced no problems. To add insult to injury, the company refused to take back 4 of the sticks claiming that their 30 day grace period had expired. I do not think this behaviour is acceptable. I ended up buying LR-DIMMs from OWC which is what I should have done in the first place. They work flawless.