This small rack can fit the Fiber Photometry Console, the 2-channel LED driver, 2 LEDs, 2 photodetectors (Doric or Newport) and up to 2 FMC5. It is suitable for use with the following systems: all the 1-site 2-color Fiber Photometry Systems, the 2-site 2-color Fiber Photometry Systems for 405 and 465 nm.