华为(HUAWEI)S1730系列8口16口24口48口千兆二层WEB网管企业级交换机 智选S1730S-S48T4S-A1 48口千兆 收藏 ￥ 累计评价 0 降价通知 颜色 智选S1730S-S24T4S-A1 24口千兆 S1730S-L4P4T-A 8千兆口4口POE S1730S-S24T4X-A 24口千兆交换机 S1730S-S24P4S-A