Tripp Lite 40GbE QSFP+ to 10GbE SFP+ Passive Copper Breakout Cable QSFP-4SFP10G-CU1M Compatible 2M 6.5' - QSFP+/SFP+ for Network Device, Switch, Server - 5 GB/s - 6.56 ft - 1 x QSFP+ Male Network - 4 x SFP+ Male Network - Black"
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