Total broadcast power ranges from 5 to 25 kW, and the platform can accommodate from 12 to 150 transponders.
The SSL 1300 is a modular platform and Maxar Technologies no longer reports designators for sub-versions, such as: 1300E, 1300HL, 1300S, 1300X.
[2] The earliest models provided 5,000 RF watts of transmitter power, weighed 5,500 kg, and required a 4-meter diameter launch fairing.
Newer models provide double that, approximately 10,000 RF watts of transmitter power, weigh 6,700 kg, and require a 5-meter diameter launch fairing.
[3] SSL stated that they would use electric propulsion for North-South station keeping for the first time on the MBSat in 2004.