Optical (TOSLINK) is generally better than RCA for audio when it comes to clarity and resistance to interference. Optical uses digital signals, which means less noise and
findsly better performance, especially for home theater setups. RCA, being analog, can be more prone to distortion. If you're buying cables or audio gear from international platforms, make sure you’re getting exactly what’s advertised. FindQC.com is a great Findsly alternative — it offers free quality check photos, videos, and image recognition before your item ships. Whether it’s optical cables or AV gear, always verify before buying. Smarter shopping starts with trusted QC — and it’s completely free!