High power rocketry will typically involve putting electronic components into the rocket to control when the parachutes are deployed. This video shows how to mount the electronics in a electronics-bay, which is typically shortened to e-bay. This YouTube video is just a short snipet of the 2-hour long video that shows how to mount the electronic board to the sled in the ebay. This snipet shows the final prep step prior to flight, which is putting in the ejection charges that kick out the parachutes.