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I read your last post and alot of it went over my head, apart from enclosures and ssd’s you’re using, I’ll take that info and see what falls into my price range and whether it’s worth making up my own or buying the ready made one..
cornelius_blackfoot-
The correct type of enclosure is ~£120 from Amazon, or ~£80 from Ali Express.
Prosumer 2TB bare NVMe drive such as Samsung 980 Pro can be had for ~£150.
A ready-rolled 2TB Thunderbolt drive, such as a Sandisk Pro-G40, with shitter write endurance & sustained write speeds than a prosumer bare NVMe drive, goes for ~£350.
ectoplasmosis
As per my last post, TB3/4 both use PCIe3.0 x4, so a PCIe4.0 drive will fall back to 3.0 when run via TB PCIe tunnelling.
Max effective bandwidth is ~2.8GB/s.
If you want best sequential speeds, don't bother with USB-only, of any version. Refer to my previous post for enclosure & drive recommendations.
Don't use shit low/mid-range consumer SSDs; these have tiny caches beyond which write speeds fall off a cliff, and terrible write endurance.