SpaceX Revealed Gen3 Satellite Specifications
The new orbital architecture boasts 10 Tbps capacity per unit to support direct-to-device cellular connectivity.
Updated on Oct. 4, 2026 in Data Centers
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SpaceX has unveiled the technical specifications for its Gen3 satellite architecture, which features a 250 kW power payload and 10 Tbps of bidirectional data capacity. This satellite design is currently in the research and development phase and requires Starship for deployment.
Why it matters
The increased power enables signal penetration through building structures, addressing critical link-budget constraints for direct-to-cell connectivity. This scaling allows the system to provide more robust coverage by producing higher electrical power than the International Space Station.
Each Gen3 satellite supports 10 Tbps of bidirectional data capacity, with an architecture designed to scale beyond 100 Tbps. The system integrates Nvidia Vera Rubin NVL72 hardware to manage onboard edge computing tasks.
The players
SpaceX
An aerospace manufacturer and satellite operator that manages the Starlink constellation and Starship launch vehicle program.
Nvidia
A semiconductor company known for designing high-performance processing hardware used in data centers and edge computing environments.
The details
The Gen3 platform uses onboard edge processing—specialized compute hardware located on the satellite—to perform orbital data routing and digital beamforming, the process of steering radio signals toward specific users on the ground. To manage this throughput, the system relies on a 250 kW solar array, a power output that exceeds the 120 to 240 kW range produced by the International Space Station. SpaceX supported these capabilities by acquiring AWS-4 and H-Block mid-band spectrum licenses for $17 billion.
Timeline
• October 1, 2026: Technical specifications for the Gen3 architecture were disclosed.
• Q2 2026: SpaceX established dedicated 50MHz spectrum blocks for the service.
The Tech Race
The Gen3 architecture signals a shift in the satellite communications race toward massive, high-power edge computing platforms in orbit. It extends beyond current connectivity standards by targeting performance tiers that require the power density of the International Space Station.
The Gen3 system is designed to improve direct-to-device connectivity by allowing signals to penetrate building structures that currently block satellite signals. This technology remains in the development phase and will require the successful operation of the Starship vehicle for deployment.
The takeaway
SpaceX is transitioning its satellite fleet into high-capacity edge computing platforms capable of rivaling ground-based infrastructure. Watch for the first Starship launch carrying these Gen3 payloads to verify the orbital deployment performance.
Further reading
For broader context on the evolution of orbital compute infrastructure, visit the Data Centers section.
Source note: This article includes information reported by Satnews.
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