a) OM3, OM4
The OM3 fiber spec indicates that OM3 fiber is mainly designed for 10 Gb/s transmission speed, but it also can run under 40 Gb/s and 100 Gb/s. As an advancement of OM3 fiber, OM4 fiber is chiefly used for 10G, 40G and 100G Ethernet. Both OM3 and OM4 fibers support 40 Gb/s and 100 Gb/s speeds when they are terminated with 8/12-fiber MTP/MPO connectors and 24-fiber MTP/MPO connectors respectively. The 40G interfaces are 4x10G channels on four fibers per direction and the 100G interfaces are 10x10G channels on 10 fibers per direction.
b) OM3, OM4 10gbase-SR w/ 10GBPS
bond 3 cables or bigger w/ OM3, OM4 40gbase-SR4 w/ 40gbps
Choose 10gbase-SR w/ 3 cables is cheaper
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