Looks like they don't make it anymore but I got the aoostar n1 pro on amazon. I would try eBay or AliExpress to find something similar. https://www.amazon.com/AOOSTAR-N1-PRO-Upgraded-Full-Featured/dp/B0F9K1G96Q
It has both 2.5 gigabit ports built in. Its basically purpose built for opnsense. I just connected a multi gig switch and a WAP and it's great.
I have the same 2Gb/s speed at my place. Its $10 more a month than 1Gb/s, making it easy to justify. I have no need for it besides bragging rights haha
I have 2 Gb/s down using opnsense on a n150 mini pc. The one I got has 2 x 2.5gb ports. I don't have too many devices, but I've never had issues getting that full download speed. During downloads where I hit my full speed, it hits about 30% usage. During normal usage like games/streaming/web browsing I don't see above 10% usage.
Water does change density with temperature, so it is denser the deeper you go. I doubt there's a normal bowling ball weight that would have the right density for it to float at some random depth though.
That would definitely work. It's overkill but with the current PC market it might be hard to find something cheaper. I paid $140 for mine about a year ago