They're pretty durable. Unlike some others of varying lengths that I have ordered at the same time as these from different manufacturers, these are perhaps the best of them. No, these aren't Neutrik connectors, but they do come with rubber boots on the connector to reinforce the internal cable connection, which is a definite plus. If you don't plug and unplug them a lot, they should last a long time. Serviceable? As a last resort yes as spare parts. Yes. But I think you want to spend a little more on high-end connectors for reliability and security. Also have a cable tester for those occasions blah, blah, blah, blah, blah. They can be connected and left and not broken off much.
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