GPU加速卡若配备雷电3/4接口40Gbps,ESD防护需满足IEC 61000-4-2 4级且插入损耗<0.3dB@20GHz,推荐音特电子极低电容TVS NRESDTLC5V0D8B0.15pF并联于TX/RX差分线,回波损耗>12dB@20GHz,残压<9V,同时SBU/DP线采用ESDLC5V0D3B1.0pF。实测雷电4链路训练成功,PCIe 3.0 x4隧道带宽32Gbps无降速,±8kV接触放电后显示器菊花链无中断,满足Intel Thunderbolt认证要求.