Have used both of these: https://www.amazon.com/dp/B01KFBFL16?ref=ppx_yo2ov_dt_b_product_details&th=1 https://www.amazon.com/dp/B09X9VHMBW?ref=ppx_yo2ov_dt_b_product_details&th=1

Both are used to connect servers to my NetApp CN1610 (which is essentially a Brocade) so you should be good with those.

Sure, its the Mikrotik CRS305-1G-4S 4-port SFP+ switch https://www.amazon.com/gp/product/B07LFKGP1L .

The SFP+ to 10GBaseT module I'm using to connect to the iMac is the 10GTek ASF-10G-T. https://www.amazon.com/gp/product/B01KFBFL16

The direct connect cable I'm using from my TrueNAS box to the switch is the 10GTek CAB-10G5FP-P https://www.amazon.com/gp/product/B00WHS3NCA

its just more variables to go wrong. You need a SFP+ NIC (how much did that cost you), then a SFP+ to RJ45 converter, and then the Cat 6 cable. It's still $100 bucks. How much was your SFP+ card ?

https://www.amazon.com/10Gtek-SFP-10G-T-S-Compatible-10GBase-T-Transceiver/dp/B01KFBFL16/ref=sr_1_1_sspa?crid=60U4TSHFEBGE&keywords=SFP%2B+to+RJ45&qid=1659198383&sprefix=sfp%2B+to+rj45%2Caps%2C114&sr=8-1-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEyMTVNUUJHSVRSVzZQJmVuY3J5cHRlZElkPUEwOTk0ODI1MTZEMktVT0gwNkdESSZlbmNyeXB0ZWRBZElkPUEwODI2MTc3SE1QNTJYOFpHN1ZRJndpZGdldE5hbWU9c3BfYXRmJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==

Bob Zelin