A satellite payload adapter is used to connect multiple satellites to the launch vehicle (rocket). It ensures that the satellite is securely attached to the rocket during launch and facilitates its deployment into the desired orbit. The payload adapter typically consists of a separation system that releases the payload into its intended orbit or trajectory once it reaches space.

The satellite payload adapter is usually made of aluminum or carbon fiber composite materials. It ensures the satellite is positioned accurately within the payload fairing and in relation to the rocket's center of gravity. This adapter can withstand launch loads, including vibrations, acoustic forces, and G-forces. It also include connectors to transmit power, data, and telemetry signals between the satellite and the rocket.