Third party thunderbolt 4 cables not working with Mac Studio

Try ordering the cable(s) directly from OWC?

https://eshop.macsales.com/shop/owc-thunderbolt-4-cables

Plus you should be using the rear Thunderbolt Ports on the Mac Studio (Max)

Mac Studio - Technical Specifications - Apple

On front (M2 Max):

• Two USB-C ports (up to 10Gb/s)
• SDXC card slot (UHS-II)

On front (M2 Ultra):

• Two Thunderbolt 4 ports (up to 40Gb/s)
• SDXC card slot (UHS-II)

The ThunderBolt symbol on each end of the cable is your assurance that the cables were tested and meet the accepted thunderBolt standard, BUT:

Cables for high-speed displays need to be SHORTER than 0.8 meters for Apple cables, shorter than 0.5 meters for brand-X cables.

HIGH SPEED data cable length limits are the same. If you MUST have longer cables, they must be ACTIVE cables, and the price goes from a typical about US$40 to about US$250.

Hard to say for sure… out of spec. connectors, poor construction, to long, etc, etc….

If a cable is not working, then I would contact the vendor for a replacement or return that cable to Amazon and buy a different brand.

just some interesting background about thunderBolt:

Originally, it was going to be a fiber-optic ONLY system. But while they were still evaluating it the lab, prices for fiber optic were not coming down fast enough, and fiddling with the interface (including shortening cable lengths) showed that its COULD be supported over copper.

So copper ThunderBolt is what got released, and fiber-optic versions of Thunderbolt are available, but have not yet descended to 'consumer' level prices.

A side note is that Fiber-optic Ethernet-equivalent cables HAVE gone way down in price, putting them within consumer reach. At this writing you still use a double fiber for ordinary uses, one for transmit data and one for receive data.

What brand and model are the RAIDs?

Please provide links to the cables that you purchased.

https://eshop.macsales.com/blog/74922-difference-usb-c-thunderbolt-usb4/