The Electron-Ion Collider (EIC), to be constructed at Brookhaven National Laboratory (BNL), is a roughly 10 year project to design and construct a facility to collide polarized high energy electron beams with polarized proton and heavy ion beams at center of mass energies from 20 GeV to 140 GeV and luminosity up to 10^34 cm^(-2s-1). The project is a partnership between BNL and the Thomas Jefferson National Accelerator Facility (Jefferson Lab, JLAB). The facility requires generation and storage of Ampere-class beams of hadrons and electrons in the collider rings, cold high-current electron beam in the strong hadron cooler (SHC), and precise high-gradient crabbing of electrons and hadrons in the interaction region. To achieve this, a diverse and challenging set of RF systems is needed comprising approximately 50 SRF and 20 NCRF cavities. Challenges include heavy beam loading, very high RF power, ultra-low-noise operation of the crab cavities, extremely low noise operation of a 100mA, 150 MeV SHC ERL, bunch merging and splitting gymnastics, and operation over a wide range of energies. This talk will provide an overview of the machine parameters and RF systems.