USA-233 or WGS-4 is an American military communications satellite which was launched in 2012. The fourth Wideband Global SATCOM spacecraft, it is the first WGS Block II satellite to be launched. USA-233 can transmit data with approximately 3.6 gigabits per second bandwidth. It can point 19 individual beams at different points on the Earth, operating at x band and ka band frequencies. Built by Boeing around the BSS-702 bus, the -kilogram () satellite is expected to operate for 14 years. Propulsion is provided by an R-4D apogee motor, and four XIPS-25 ion thrusters for stationkeeping.