And, as a earlier poster explained, there is 10GBASE-T1,
which is 10G over a single pair! Wow! Who knew!?
"The 88Q4364 is manufactured using a standard digital CMOS
process and contains all the active circuitry required to
implement the physical layer functions to transmit and receive
data on a single balanced twisted pair."
"The 88Q4364 is manufactured using a standard digital CMOS process and contains all the active circuitry required to implement the physical layer functions to transmit and receive data on a single balanced twisted pair."
https://www.marvell.com/content/dam/marvell/en/public-collat...