Is “either” only used with two options?

Question

Does “either . . . or” apply to only two options? For example, can I say, “It can provide *either* 100, 150, or 400 amps of power”? Or should it just be “It can provide 100, 150, or 400 amps of power”?

Answer 1

Either/or is usually used when talking about two options. I would go with the second choice.