Unverified80% confidenceCautionTime unknown
台式机若主板已有千兆网口或PCIe插槽空余，不建议用USB网卡替代，PCIe网卡稳定性和性能更好、无占用USB口和发热问题
1
Sources
80%
Confidence
Long-term
Relevance
-
First Seen
Sources
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Unverified台式机若主板已有千兆/2.5G网口，不要用USB转接器替代内置网口，PCIe网卡稳定性与散热远优于USB外置，USB方案仅适合笔记本或应急91% similarUnverified笔记本或无空闲PCIe插槽的设备才考虑USB网卡；有PCIe插槽的台式机/NAS一律优先PCIe网卡，稳定性、发热和满速表现都优于USB方案87% similarUnverified电竞用途优先选PCIe接口网卡而非USB，PCIe直连主板总线延迟更低且供电稳定，USB网卡在高负载下易出现丢包和延迟抖动78% similarUnverified笔记本电脑不要选内置PCIe采集卡（无扩展插槽），应选USB3.0外置卡；反之台式机长期高强度直播优先PCIe内置卡，延迟更低且不占USB带宽78% similarUnverified仅偶尔接鼠标U盘的轻度用户不建议买带PD直通+千兆网口的高集成扩展坞，发热大体积重成本高，普通USB-A四口集线器足够77% similar
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