40G QSFP+ to 4xSFP+ Breakout DAC 40GBASE CR4 Passive Direct Attach Copper Twinax QSFP SFP Cable for Cisco 4SFP10G CU3M Devices, 3 Meter(9.9ft)

40GbE QSFP+ to 4xSFP+ DAC Direct Attach Copper Twinax Breakout Cable, Passive, 3-Meter(10ft), 30AWG Widely compatible with Cisco QSFP-4SFP10G-CU3M Devices, and other open switch Devices 40G QSFP+ to 4xSFP+ Cable can connect 40 Gigabit switch, router, server, NIC, or other fiber optic equipments with QSFP+ ports to 10 Gigabit equipments with SFP+ port for Network Attached Storage, Storage Area Network and High Performance Computing In 10Gtek's Signal Integrity Lab, we 100% passed TDR & VNA tested. And each DAC Cable is individually tested on switches before delivery 10Gtek is a manufacturer of Direct Attach Copper Cable, custom sevice also is available