Depending on when you buy, the prices vary a lot. The best way to approach is to look for several hundred positive reviews on Amazon (think 4.5) if possible. Then focus on 60Gps or higher.
What cabling is 60gbps? There is no cabling standard (USB4…TB4…) that is >40Gbps. Who, exactly could or would spec a 60Gbps cable for a standard that does not exist?
The port I believe is limited to 40 or something. I'm extremely happy now. My saves were at four seconds before upgrading my cables. Now they're at one second for one gig files.
I use two Terramaster D4-300s with about 18TB of storage. Mainly 4TB drives with one 10TB drive. This is where the cables are crucial. You'll definitely want the Pro for the extra ports and speed. 32GB of RAM is pretty standard for anyone over grandma level of use.
https://www.terra-master.com/us/d4-300.html?page=menu&mid=824 - if that is what you have, it offers the grandma speeds of 5Gbps, or call it 500MB/s max theoretical, less in practice. You can read that spec here:
https://www.terra-master.com/us/products.html, where they quote around 420MB/s transfer rates. I’m confused; why do you mention best cables if it is just a basic USBC 5Gbps connection? Where is the “Pro” with the faster rates?
Caching is what would let that disk setup write 1GB in a second. The interface is only able to do a bit less than half that speed, if I’m reading the specs & model right. Your OS handles the copy in the background, while telling you in the GUI that it’s ready for the next action.
https://eshop.macsales.com/blog/72169-everything-about-thunderbolt-4-cables/ is a summary of USB4 vs TB4.
Many pro users are working just fine with 8GB.
It all depends on the app…