AOFPLUS's 40G QSFP+ to 4x10G SFP+ AOC (Active Optical Cable) is a specialized fiber cable that breaks out a single 40 Gigabit Ethernet QSFP+ port on one device (like a switch) into four separate 10 Gigabit Ethernet SFP+ ports on other devices (like servers), using OM3 multimode fiber for distances up to 100 meters, offering lighter weight and better flexibility, and is a cost-effective way to connect equipment with different port densities.