Sadly no — you have toys (none open source and reliability is... well, let's say that the repair are regular and out of support) or you can try to create yourself a waterproof solution (that's complex). Most connector cost a lot, 3D printing is not really an option (especially at depth), pressure is not joke to deal with... And then you'll have to fight with the environment (algae, plants), water salinity, acidity and so on.
Other system at the same level costs more — I think the next one is at 25k without option.
Don't forget that if for any reason you need to reach it at depth, you'll have to dive. Please don't do that alone...
It's a high cost hobby :(