QSFP-H40G-AOC1M=

The QSFP-H40G-AOC1M is a 40 Gigabit active optical cable, 1 m long, with a QSFP+ connector on each end and multimode fibre carrying four lanes between them. Both connector ends use the same housing style, so the cable has no preferred direction when installed. Plan the route before ordering, because a fixed-length cable cannot be shortened or extended later. The fibre jacket is lighter and thinner than 40G copper and avoids the reach limits copper has at this speed. It fits the shortest runs, such as a switch feeding a server or patch panel a few rack units away in the same cabinet. Check the host platform's supported-cable list before deploying, as support varies by switch family and software release. Cisco's 40GBASE QSFP data sheet lists it among the QSFP-to-QSFP active optical cables, available from 1 m to 30 m. The rate is fixed by the cable type, so the port at each end must be set for the matching speed. The optics are sealed into the connector bodies, so there are no MPO connectors to clean and no transceivers to match.