Radial Engineering Radial SA19-RA Rack adaptor for SA series, Firefly, Prodigy - holds 1 or 2 in a single 19" space. Part of our AV Components range (audio processing & control), supplied through AV Distribution, an authorised South African distributor for professional audio, video and staging equipment. Available to order -- contact us for lead time. Contact our team if you need help confirming compatibility with your existing setup.