The cutting-edge ηDragonfly is a nano-class satellite that revolutionises space delivery with the capability to deploy multiple satellites in a single launch. The ηDragonfly combines microsatellite performance and reliability within the compact cubesat-class parameters, eliminating the need for additional launcher pods. Weighing just 50 kg, ηDragonfly is engineered to deliver five years or more of in-orbit operation and is designed for sensitive imaging payloads. Leveraging validated avionics components from the successful EOS SAT-1 satellite mission launched in January 2023, ηDragonfly ensures top-tier performance and reliability. Attitude and Orbit Control • Pointing Control Stability → <0.005°/sec (3-sigma) • Pointing Control Accuracy → <0.01° (3-sigma) • Slew Rate → Up to 12°/sec Communications • S-Band TMTC → 400 kbps down, 150 kbps up • X-Band Data Downlink → 2.6 Gbps (peak) Electrical Power System • Solar Array Peak → 113—197 W • Power Orbit Average Power (OAP) → 71—125 W Electrical Interfaces • TMTC → CANBus, RS422/RS485, GigE • Data → LVDS / SpaceWire / SerDes