Better option is to use the QSFP-40G-SR4 & 4x 10GBASE-SR. The 4x10G connectivity is achieved using an external 12-fiber parallel to 2-fiber duplex breakout cable, which connects the 40GBASE-SR4 module to four 10GBASE-SR optical interfaces. Key solutions like the 40G QSFP+ SR4 and 100G QSFP28 SR4 modules are central to this approach, enabling the conversion of a single high-speed link into four independent 10G or 25G connections. This capability is ideal for multi-link applications, such as constructing large spine-leaf architectures. As datacom technology migrates from 10G to 40G and beyond, connecting 40G equipment with existing 10G equipment is often necessary. 40G to 10G breakout cabling solution is ideal for connecting high-speed switches populated with higher rate transceivers QSFP+, CFP, CXP, CFP2, etc. Cable solution: use QSFP+ branch cable QSFP+ branch cables include QSFP+ to 4*SFP+ DAC passive copper cables, and QSFP+ to 4*SFP+ AOC active optical cables. Today I will introduce the most common 40G QSFP+ optical module MPO port and 10G SFP+ optical module LC port under the letter.
[PDF Version]