FLOCK 4X-43, also known as Flock 4x-43, is a CubeSat (3U) satellite owned and operated by PLAN. Launched on January 13, 2022, from the Air Force Eastern Test Range using Falcon 9 launch vehicle, this technology demonstration satellite has dimensions of 0.3 meters in length, 0.1 meters in diameter, and a span of 0.3 meters. The satellite's dry mass is 5.7 kg, identical to its launch mass. Equipped with PS0, PS1 or PS2 imaging payload as part of the Dove 2486 mission, FLOCK 4X-43 relies on solar cells and batteries for power supply. Its operational lifetime is expected to be around one year in an International Space Station (ISS) orbit, extending up to 2-3 years in a Sun-Synchronous Orbit (SSO). The satellite's shape consists of a box with two panels attached, and it does not have any motors except for the FEEP configuration used in specific models like #Flock-3p'.