Unverified80% confidenceTradeoffTime unknown
带PD直通的集线器在满负载充电时铝合金外壳温度可达45-55℃属正常现象，选购时优先金属外壳（散热优于塑料）；若长期插硬盘工作，塑料外壳集线器易因积热导致降速
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Unverified多口高速集线器工作时铝合金外壳温度可达45-55℃属正常，塑料外壳散热差易触发降速保护，长时间高速传输场景优先选金属外壳款91% similarUnverifiedUSB网卡长时间高负载传输时芯片温度可达60-70℃，金属外壳款散热优于塑料款，长期挂机/NAS用途建议选金属外壳83% similarUnverified铝合金线槽散热性优于塑料，适合放置持续发热的电源适配器（如笔记本65W以上充电器），塑料线槽长期高温易发黄变脆81% similarUnverified带PD直通和多口输出的扩展坞在满载时发热明显，选购时优先带金属外壳(铝合金)机型散热优于塑料，长时间连接可降低降频掉线风险81% similarUnverified外壳材质与散热权衡：铝合金散热好但快充时更烫手且导电需做绝缘处理，塑料外壳更安全但高功率下易积热，20W以上快充优先塑料+散热结构81% similar
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