QSFP-H40G-AOC3M=

The QSFP-H40G-AOC3M is a 40 Gigabit active optical cable, 3 m long, with a QSFP+ connector on each end and multimode fibre carrying four lanes between them. Laying the cable in before the equipment is fully racked leaves the final connection for last and saves rework. The fibre jacket is lighter and thinner than 40G copper and avoids the reach limits copper has at this speed. Plan the route before ordering, because a fixed-length cable cannot be shortened or extended later. It spans a full rack and typically the adjacent rack as well, with room for a tidy loop in the vertical cable manager. Cisco's 40GBASE QSFP data sheet lists it among the QSFP-to-QSFP active optical cables, available from 1 m to 30 m. Seat each plug until it latches, then give the cable a gentle tug to confirm the pull-tab latch has engaged. As a pre-terminated unit, it removes the need to match, stock or clean separate pluggable modules at either end. The optics are sealed into the connector bodies, so there are no MPO connectors to clean and no transceivers to match.