modular

Behringer NEUTRON Semi-Modular Analog Synthesizer 80HP Eurorack-sized Analog Monosynth Module with 2 Oscillators, 56 Patch Points, Lowpass/Highpass VCF, Filter and Amp Envelopes, LFO, and CV I/O
  Behringer Neutron Semi-Modular Analog Synthesizer

What's red, has two oscillators and 56 patch points, and gobs of attitude? The Behringer Neutron semi-modular

Behringer 2600 Analog Semi-modular Synthesizer

Few synthesizers are as celebrated as the original 2600, and now Behringer has brought the venerable semi-modular workhorse to the masses in an affordable 8U rackmountable format.

Behringer K-2 Semi-Modular Synthesizer (K2)

With the Behringer K-2 semi-modular synthesizer, you'll tap into a classic analog synth design that's ready to integrate with your other modular synth gear.