OWC Thunderbay 4 vs 8

[majouz]

On their website they claim Tunderbay 8 delivers Pro-grade transfer speeds: up to 2,586MB/s real-world tested speed with Thunderbolt 3 port. Thunderbay 4 delivers up to 1527MB/s performance. I tried to ask them directly but the only answer I got was that 8 bays are faster than 4 bays. Is this this only explanation?

I am looking to decide on one or the other soon. My storage needs can be satisfied with Thunderbay 4 but if Thunderbay 8 delivers that much faster performance, I don't mind shelling the extra $$$.

Would appreciate any guidance.

[ed]

Yes, having more disks to read from will increase the performance. Alternatively, you can use SATA SSD and have fewer bays.