I just ordered a Sonnet M2 4x4 PCIe card and 4 x 2TB Samsung 970 Evo Plus for my Mac Pro 7,1.
But I am debating getting this 4 x 4TB Sabrent instead as I could use the extra space -
https://www.amazon.com/Sabrent-Rock...la-838585227790&ref=&adgrpid=80571461181&th=1
Will this combination work/supported? Any downsides to the Sabrent? I'm' sure the Samsung are better, but would prefer the 4TB size.
Sabrent Rocket is a fine SSD, high TBW, a bit slower than a 970 EVO in sustained writes. I have the 1TB version, assuming the 4TB version is similar.
It uses the Phison E12 controller which
I posted about here with performance comparisons. The difference between the Sabrent Rocket and the Samsung 970 Pro is sustained write speed. In a large file copy the 970 Pro will sustain write speeds close to 3,000 MB/s for the entirety of the copy. All its flash chips are fast ones.
The Sabrent Rocket, 970 Evo, and most other NVMe blades like surely whatever OWC is selling, will start out fast near 3,000 MB/s in a large file transfer, but after a certain number of GBs copied it will slow down to somewhere between 1,000-1,500MB/s for the rest of the file. These drives have a mix of fast chips as cache and the rest are slower chips. Sabrent Rocket has less of that fast cache than 970 Evo, but most NVMe SSDs that aren’t the 970 Pro work the same way.
The Sabrent Rocket will perform similar to the Patriot Viper in this test:
If writing very large files isn’t an important part of your workflow then the Sabrent Rocket is a fine SSD generally. If you do often write large files of many GBs per file then the 970 Pro would be the way to go.
To comment on this amusing thread in general, the quality and performance of the SSD blades is very important, and that’s one reason why I personally would never buy a PCIe NVMe RAID from OWC pre-populated with OWC brand blades for a new Mac Pro. There are better quality options out there.
Also the x8 PCIe lane limit of the OWC card seems like a total mismatch with the maximum performance philosophy of the new Mac Pro. One fast NVMe 3,500 MB/s blade can almost fully saturate 4 lanes of PCIe 3.0. So 8 lanes would be nearly saturated with 2 blades. With 3 or 4 blades, an 8 lane card would be artificially limiting the blades up to half the speed of what they are capable of.
If I had $6k-$20k+ to drop on a new Mac Pro I wouldn’t put anything less than a x16 card like the Highpoint 7101 with Samsung 970 Pro blades in it.
(Aside from the interest in 4TB Sabrent blades
@moab1 which is perfectly reasonable. The Sonnet card is also a fine choice.)
Cheaping out on NVMe data storage in a new Mac Pro seems a little like putting cloth seats and a cassette deck in your new Ferrari. If the only thing stopping you from getting the Highpoint 7101 is fan noise, it’s a simple 2-pin fan cable, just unplug the fan. Now you have a fanless card!
Or do what I do on my I/O Crest card in my Mac Pro 5,1 and
add an inline resistor cable which slows the fan down to a more pleasing noise level.
(You really should cool 4 NVMe blades & controller chip, but many basic PCIe NVMe adapters don’t come with fans or heatsinks at all, so it’s pretty standard that users are expected to provide their own NVMe cooling solution. If the Highpoint’s included fan is too loud for your application, you’re not required to use it.)