I got these two miners in boxes and can't find anything about them online. One label says it's an Enigma Holding AG High performance server, Model: E3 with a hash rate of 77Th. I have no clue how to connect them to a pool. I've run some S9's before but they broke down. A friend showed me how to set those up. Anyone know anything about these? Are they even worth using?
E3 miner? Are you sure it's 77TH/s? The E3 is actually a Bitmain Antminer E3, which uses the EtHash algorithm. It can only mine ETC since Ethereum switched to POS. The real hash rate is around 190Mh/s, not 77TH/s. Sounds like you might have been scammed if you paid a lot.
Yeah, it can mine some other coins like Quark Chain and Metaverse (ETP), but honestly, profits could be tiny or non-existent. Those coins are not even worth mentioning if the returns are that bad.
If you can, upload some 360° pictures of the miners and their labels. That will help us identify them better. Use talkimg.com for that. Just share the BBCODE link here. I've also asked a mod to shift this to the mining section for you.