Cisco 4x100GBASE-LR1 QSFP-DD Transceiver, MPO-12, 10 km Parallel Single-Mode

Ten kilometers, four 100G channels, one QSFP-DD module: the Cisco QDD-4X100G-LR-S covers that combination. The title names it 4x100GBASE-LR1, and it has an MPO-12 APC connector, parallel single-mode fiber and a 1310 nm wavelength.

That makes it a long-reach way to break a 400G port into four 100G links over parallel fiber. Each channel has to land on a matching 100G optic at the far end, so plan the other side of the link first. Tell us the switch model on this side and what each far-end channel uses.

For a 10 km span, the fiber route also needs to fit the module's loss budget. All three conditions can be requested. New and refurbished units list 1 year or 3 years of warranty, and used units list 90 days.