Most controllers and sequences are universal, which only makes sense since most are MIDI-based. That said, there are always exceptions so, here, you'll find a range of controllers and sequencers made with a very specific purpose in mind.
Synth Programmer
One example of a specially-designed controller is the synth programmer. Back in the eighties, there was a time when a lot of synthesizers traded their intuitive fader-and-knob-ridden interfaces for a little display and a row of numbered buttons. To tweak the filter, you had to enter a given filter value (e.g. 51) using said buttons. Since this didn't exactly constitute smooth ease of use, programmers were invented: small external controllers equipped with real knobs and faders to make operating more complex synth that bit easier. Nowadays, you can get various modern recreations of some of those programmers, some of which you'll find here.
Sequencers and Eurorack Sequencers
Most sequencers, most notably models with an MPC or x0x-style interface, will look very familiar. What's more, the exact same interfaces are often reproduced in software-sequencers, simply because the concept works so well. For the most part, we're talking about sequencers with built-in sound generators like samplers, but there are also more specialised sequencers out there, like Eurorack models for CV/gate signals. You'll find those in our range of Eurorack Modules, while any standalone sequencers that also happen to send out CV/gate signals can be found right here.