Unverified50% confidenceCautionExact time
RTX 3090热设计功耗高达350W，需确认扩展坞电源适配器通常需要650W以上稳定供电
1
Sources
50%
Confidence
Long-term
Relevance
7/14/2026
First Seen
Sources
千元预算搭建外置GPU跑本地LLM：eGPU选购与配置实用指南
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