A cable slack manager for managing cable slack comprises two or more spaced apart cable management members rotatable between a first stored position and a second deployed position. At least one arm releasably securable to a cable management assembly (e.g., a rack or data cabinet) may carry the two or more spaced apart cable management members, which may exhibit a round or C-shaped configuration. The cable slack manager may optionally comprise a base mountable to the cable management assembly, with the at least arm securable to the base.