Belkin F6C127-BAT Regulator Pro Gold Series Replacement Battery for UPS Battery Backup Replacement battery for compatible Belkin devices Compatibility: Belkin Regulator Pro Gold series (F6C325-SER, F6C425-SER, F6C525-SER, F6C350-USB F6C500-USB, F6C350-USB-MAC, F6C500-USB-MAC) Comes with 1-year extended warranty This item is not for sale in Catalina Island