Immune to all forms of EMI/RFI – Low-Loss MPPA core ensures low distortion – Superior-grade optical fiber and precision polished optical terminations – Ultra-flexible PVC jacket makes installation easy, Non-slip rubber grip connector provides for easy installation – Protective plastic cover protects lens from dust, dirt, and other material – Perfect for connecting your Apple product with mini-Toslink (MacBook, iMac, Mac Mini) to your receiver for beautiful digital sound