Fractal Design Define R4/XL R2 Audio Ports Replacement Parts Fractal Design Define R4/XL R2 Audio Ports Pictures × Previous Next Advice Tech Specs Sorry, we have no advice for this part! Model: Fractal Design FD-SPARE-DEF-XL-R2-AUDIO-KITReplacement Audio ports for the Fractal Design Define R4 and Define XL.