40GbE QSFP+ to QSFP+ DAC Direct Attach Copper Twinax Cable, Passive, 5-meter, AWG26. 40G QSFP+ Cable can connect switch, router, server, NIC, or other fiber optic equipments with QSFP+ ports for Network Attached Storage, Storage Area Network, and High Performance Computing. Widely compatible with HPE JG328A devices. In 10Gtek's Signal Integrity Lab, we 100% passed TDR & VNA tested. And each DAC Cable is individually tested on switches before delivery. Backed by 10Gtek 30 Days Free-returned, 3-Year Free Warranty and Lifetime Technology Support. 10Gtek is a manufacturer of Direct Attach Copper Cable, Customized service is also available. › See more product details