อะไรคือ 802.3at
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Tactio
802.3AT จ่ายไฟมากขึ้น กินไฟมากขึ้น จะอันตรายขึ้นด้วยมั้ย?
– สาย LAN จะรับภาระของกระแสไฟฟ้ามากขึ้น จนอา