SPACEHAB is a commerical company that provides transportation, storage, and research modules, under contract, to NASA, the US Department of Defense, and international space agencies, among other customers. SPACEHAB modules have been used in numerous Space Shuttle missions, and are also heavily used in SSM2007.

The SPACEHAB Logistic Modules require that the three Payload Power Switches on the R1 Panel be switched on during the on-orbit mission.

Note, the two ESPs are permanently attached to the ISS