Free Shipping! ZWO 8.3MP Sony IMX678 CMOS Sensor, 2.0µ Pixels, 11.27ke Well Depth, USB 3.0 & DDR3 Cache for Data Transfer, 47.5 fps Max Frame Rate, Quantum Efficiency: 83%, Zero Amp Glow Circuitry, USB 3.0/2.0 Port, ST4 Autoguider Port