sun hardware generally isnt known for its video capability, just raw number crunching. what you have are thins that are supposed to connect to a 420R or something beefy and about the price of a ford explorer.
if you like crypto, make one of them a root, and the other a CA. they do wonders crunching large keys even with a 32 bit RISC. you can even configure them as a tunnel or gateway for a vpn. downside is you can do the same thing with a pi, at about 1/10th the electricity.