UniTraQ UD-731 USB 2.0 44-Channel GPS Receiver (Black) UniTraQ UD-731 USB 2.0 44-Channel GPS Receiver General Features: Black color USB 2.0 interface 44 parallel channels Capable of keeping up to 100,000 positions (Longitude, Latitude, Speed, UTC ) Industry-leading TTFF speed SBAS (WAAS/EGNOS) capable Cold start: 45 seconds Hot start: 1 second Accuracy: 5m Lead-free Specifications: Re-acquisition sensitivity: -155 dBm