I looked at that thread, and someone was using the Sonnet single card version, which costs now, $US99. But for I think $US139, you can have a twin SSD version from Sonnet, that includes a raid chip on the card, and also includes a type C gen 2 10 Gbps (not the gen 1 5 Gbps), which is usefull IMO since it does save a slot. Its only 4 times, but then, one could therefor leave the 16x slot for something else ... it has a type of button thingo that on boot up you have to hold to configure the RAID, so obviously you'd use the RAID 0 and get the 1,000 (or would it be 960) speed. OK, that is a lot slower than 3,000 plus for the multi card systems which have their own Raid chip and use 16x wide bus on their card (Hightech and Sonnet). But then, it's a fair bit cheaper especially if one hasn't already got a USB 3.2 slot.
I also spoke with tsialex and he advised the Highpoint 7103 card was really for PCs. I checked the Highpoint page and it said that the SSD7101-A card was suitable for Windows, Mac and Linux ... so he's right. He said 7103 is an older card by over a year (they revised both). Its a shame as the 7103 had $100 off it at B&H for a Black Monday special.
For me, the choice is one of three now with a stupid keep it cheap option:
In Australia pricing:
1 -
$Au595 delivered: Spend big and get the Highpoint SSD7101-A. Lots of room for extra space too with that choice. Lots of speed too.
2 - $Au251.94 delivered: =>
$Au380 (with cooling added). StarTech.com Dual M.2 PCIe SSD Adapter Card - x8 / x16 Dual NVMe or AHCI M.2 SSD to PCI Express 3.0 - M.2 NGFF PCIe (M-Key) Compatible - Supports 2242, 2260, 2280 - RAID & JBOD - Mac & PC (PEX8M2E2) I'd have to add some cooling kits for the two NVME cards which would cost $100 to $130 for me.
3 -
$Au300: Sonnet Tempo Fusion duel - Delivered from Australian distributor but they say its in stock but they say it takes 5 weeks to get to me! Dual 2.5-inch SSD PCIe 3.0 card with hardware RAID controller, plus 10Gbps USB-C port Issue - the card is very long and can fowl the exit fan ... some filing is likely necessary ... for an Apple specialist, that design flaw is frustrating. Benefit is it only takes one slot for two SSD with a hardware raid, plus the USB-C 10 Gbps, so it saves three slots on cheaper solutions.
4 a - 2 x $59 - $118, Startech x4 PCI Express to M.2 NVMe (M key) PCIe SSD Adapter Card PEX4M2E1 - fill two 4x slots and software Raid them ... a lot cheaper than the Sonnet, but putting in a USB 3.2 will be difficult to do ... I guess add some cooling. There are better options too out there, some have cooling fins supplied and have worked well. Someone please post the best single solution for an m.2 solution for a classic mac pro, thanks.
4 b - 2 x $67 = $134 (Cyber Monday) OWC Accelsior S PCIe Adapter for 2.5 Sata III SSD drives. For the SSD, maybe no need to add cooling. Add the USB 3.2, that's 3 slots. The Sonnet Duel Tempo Fusion takes just one slot to accomplish the same thing.
4c -
$US29 (normally $US49) - OWC Accelsior 1M2 M.s SSD to PCIe 4 Adapter card. Works in Mac Pro, macOS 10.13 High Sierra macOS 10.14 Mojave macOS 10.15 Catalina
Claims 3000MB per second, but that would be for a type 4 4xPCI-e slot, so for a 5,1, it would be around 480 Mbs. But - it has cooling fins included with its kit.
Not being nvme it would work on olde Mac OS like High Sierra - well, I think nvme might work too, if the ROM is the latest one, thanks tsialex for doing my ROM work and finding some Malware evidence in my Mac Pro.
OK that OWC cooled one so cheap is tempting. But hey it's not quick.
5 - Sonnet 4 x slot card - I've not included that, as it costs over $Au800 in Australia. Thanks but no thanks dumb Australian distributor. Or maybe I am being unfair - the direct imports do by pass the middle man, who does give advise, fix stuff and does pay people wages and needs to make a profit.
With four slots, a good cooling solution manageable from the 5,1 itself, the expensive Highpoint option makes most sense. Who wants to spend half as much for two cards that do not have cooling management? Downside - it seems silly to spend a heap on an 8 year old machine.
Note: for Australia, we cannot easily buy Sonnet for international prices, as there is an Australian supplier, and their price is higher than international prices. But Highpoint, Startech etc. can be bought for international pricing. We then have to ad shipping, a sales tax is added by Amazon etc. too, and we have to wait several weeks for delivery unless you pay more for a higher speed delivery.
There are other choices but it seems some seem to be having some recent compatibility issues, due to suspected changes in a hardware item that is disagreeing with Mac Pros (classics as I think no 7,1 owner would put in a very cheap and slow solution).