IP68 is the highest level of connector waterproof grade standard. As we all know, the waterproof performance of waterproof connector mainly depends on the last two digits of ipxx, the first X is from 0 to 6, and the highest level is 6; The second X is from 0 to 8, and the highest level is 8; Therefore, the maximum waterproof grade of the connector is IP68. In other words, IP68 connector is the connector with the highest waterproof grade. In the market, there are many connectors with waterproof grade standard of IP68, but in the real sense, there are still few IP68 connectors with excellent sealing performance and safe and reliable quality in the market. The IP68 test standard of some brands is: put the connector product into a water depth of 10m and work for 2 weeks; The good performance of the product can still be maintained when it is put into a water depth of 100m and tested for 12 hours.