The PSL3U from Astro-und Feinwerktechnik Adlershof GmbH is a Space-Qualified Satellite Deployer that is designed for 3U CubeSat configurations. It has a maximum satellite mass of up to 4 Kg. This flight-proven deployer features a non-explosive lock and release mechanism and a closed envelope for high safety. It has redundancy in the actuation and deployment confirmation signals and is qualified for a variety of launch providers. The deployer measures 340.5 x 100 x 100 mm and has a large clearance for attachments on the CubeSat, and access ports for maintenance on the launch site.