HANMATEK 110mhz Bandwidth DOS1102 Digital Oscilloscope with 2 Channels and Screen 7 inch / 18 cm, TFT-LCD Display, Portable Professional Oscilloscope Kit with 500 MS/s *2 Sampling Rate: Amazon.com: Industrial & Scientific
monspace: The cheapest dual trace scope in the galaxy
LabVolt Series by Festo Didactic - Dual-Trace Digital Storage Oscilloscope (798-10)
monspace: The cheapest dual trace scope in the galaxy
BS-USB module with 16 digital inputs/outputs - Deditec
Tektronix MDO3024 200 MHz Mixed Domain Oscilloscope, 4 Analog Ch