http://www.nasaspaceflight.com/2015/10/apstar-9-chinas-long-march-3b/APSTAR-9 rides uphill on Chinas Long March 3B
October 15, 2015 by Rui C. Barbosa
China's DFH-4 satellite bus platform can carry a maximum of 54 transponders.
APT Satellite Company had purchased a Chinese DFH-4 satellite and outfitted it with 46 transponders (e.g. 32 C-band and 14 Ku-band transponders). APSTAR-9 satellite was shot into space on October 15, 2015.
This satellite launch is important, because it shows China is taking business away American and European satellite manufacturers.
----------