Systems
Pre-integrated combinations of compute, power, networking and sensing, supplied as one unit and mounted on a robot base. The components are the same ones documented under Peripherals — the difference is that here they arrive wired, configured and tested together, so you start from a working platform rather than an assembly job.
Not sure which generation you have? The onboard computer is the quickest tell — a NanoPC is v1.0, a reComputer J4012 is v1.1.
The individual components are documented under Peripherals, and the bases these mount on under Robots.