If the Server’s Module is OSFP and the Switch’s is QSFP112, can it be Linked by Cables to Connect Data?

Yes, but you need to use a specific fiber optic transceiver and cable, as well as a port split configuration on the switch side.

OSFP and QSFP112 are both fiber optic transceivers that support 400G data rates, but they have different sizes and interfaces. The OSFP transceiver can split a 400G signal into four 100 Gb/s signals or combine four 100 Gb/s signals into a single 400 Gb/s signal, while the QSFP112 transceiver can split a 400 Gb/s signal into two 200 Gb/s signals or combine two 200 Gb/s signals into a single 400G signal. The QSFP112 transceiver can split a 400 Gb/s signal into two 200G signals or combine two 200G signals into a 400 Gb/s signal.

Therefore, to realize the connection of OSFP on the server side and QSFP112 on the switch side, you need to use a 1-to-2 cable. One end of the cable has an OSFP interface, and the other end has two QSFP112 interfaces, so that the 400G signal from the OSFP transceiver can be split into two 200 Gb/s signals, and then connected to the two QSFP112 transceivers respectively.

At the same time, you need to do port splitting configuration on the switch side to split one NDR port into two NDR200 ports.

In this way, data communication between the server and the switch can be realized.