Venus
The 
Venus  is a digital spectrometer which is connected directly to photomultiplier of an NAI, CsI, Lanthanum Bromide or other 
scintillation detector. It includes the 
high voltage power supply for voltages up to 2000 V, the preamplifier, an 65MHz sampling ADC and digital signal processing.
The 
Venus  communicates with the computer over a high speed (480 Mbits/s) USB 2.0 connection.  It is entirely powered over the USB bus.