Serving Business, Government, OEM, Education and the General Public since 1994   Home   •   Contact   •   Terms   •   Cart Search:    You are currently a customer. Click on a button to change countries: No Longer Available    BU353-S4-5Hz (USGlobalSat)        ID# BU353S4-5Hz USGlobalSat, the BU-353-S4-5Hz is a USB GPS receiver that features a highly sensitive WAAS enable. powered by a SiRF Star IV GPS chipset, and will provide you with superior performance in urban canyons, and in dense foliage. replacement: BU353N-10Hz