https://en.wikipedia.org/wiki/IEEE_802.3
Copper:
10/100M
1G
25G
40G
100G
Fibre
https://en.wikipedia.org/wiki/QSFP
4 x 1 Gbit/s QSFP
4 x 10 Gbit/s QSFP+
4 x 14 Gbit/s QSFP+ (QSFP14)
4 x 28 Gbit/s QSFP+ (QSFP28) used for 100G or 4x 25G
10/100M
1G
25G
40G
100G
https://en.wikipedia.org/wiki/QSFP
4 x 1 Gbit/s QSFP
4 x 10 Gbit/s QSFP+
4 x 14 Gbit/s QSFP+ (QSFP14)
4 x 28 Gbit/s QSFP+ (QSFP28) used for 100G or 4x 25G