Arista ADPT-O-Q-100G OSFP to 100G QSFP Adapter

The Arista ADPT-O-Q-100G is an OSFP to 100G QSFP adapter. It lets you run a 100G QSFP optic in an OSFP port that is set to 100G, using four 25G NRZ lanes, so you can connect an OSFP switch to existing 100G QSFP links without replacing the optics at the other end.

Arista notes that the adapter is not for copper cables, 200G QSFP optics, or QSFP-DD modules. Set the OSFP port to 100G before you insert the adapter and optic.

Arista publishes a transceiver compatibility guide that lists which switch platforms and EOS releases support each module, so check it for your switch before you order.

Keep the dust caps on the optic and the fiber until you are ready to connect them, and clean the connector end faces before you plug them in. Most failed optical links come down to a dirty connector.

The module is hot-swappable, so you can install or replace it without powering down the switch. Check that the port is set to the right speed before you bring the link up.

Label both ends of the fiber run so the link is easy to trace later.

The adapter lets a 100G QSFP optic such as the QSFP-100G-LR4 10km transceiver run in an OSFP port, for example on the DCS-7060PX4-32-F 32-port OSFP switch.

This seller refurbished ADPT-O-Q-100G is tested, working, and covered by the NetworkTigers one-year warranty.