“流行配件”可以翻译为 "popular accessories" 或 "trendy accessories"。
"popular accessories" 强调配件的广泛受欢迎程度。
"trendy accessories" 则侧重于配件的时尚性和潮流感，更贴近“流行”的含义。
根据具体语境，两者均可使用。例如：
The store offers a wide range of popular accessories for fashion enthusiasts. （这家店为时尚爱好者提供了各种各样的流行配件。）
She always keeps up with the latest trends by wearing trendy accessories. （她总是通过佩戴时尚的配件来紧跟最新潮流。）