Our high-power connectors incorporate several advantageous features. It uses copper ferrules with bored front to better dissipation heat and free-standing fiber tip to minimize the probability of damage of uncoupled light. The front part of the connector is epoxy free to prevent burning. It has key pin so that each connector can be pre-aligned to achieve and ensure uniform low loss. AR coating is an option to further reduce the loss and increase reliability. Moreover, we offer mode-stripping which removes most of the light from fiber cladding. We further offer fiber end-cap enhancement of these connectors for higher power handing, which expands the Mode Field Diameter and thus reduces the power density at the glass-air interface to a level below the damage threshold.