I think it's actually cheaper to go 40gbps QSFP and run MPO cables (4 pairs internally) than it is to go 25g fiber. It's not. 25G and 40G transceivers cost the

I think it's actually cheaper to go 40gbps QSFP and run MPO cables (4 pairs internally) than it is to go 25g fiber. It's not. 25G and 40G transceivers cost the same and MPO cables are more expensive.