40 Gbps - OC-768
13.27 Gbps - OC-256
10 Gbps - OC-192
4.976 Gbps - OC-96
2.488 Gbps - OC-48, STS-48
1.866 Gbps - OC-36
1.244 Gbps - OC-24
933.12 Mbps - OC-18
622.08 Mbps - OC-12, STS-12
466.56 Mbps - OC-9
155.52 Mbps - OC-3, STS-3, category 5 cable, high-speed ADSL downstream
100 Mbps - CDDI, FDDI, Fast Ethernet
51.84 Mbps - OC-1, STS-1
44.736 Mbps - T-3, DS-3 North America
34.368 Mbps - E-3 Europe
20 Mbps - Category 4 cable
16 Mbps - Token Ring LANs
10Mbps - Thin Ethernet, category 3 cable, cable modem
8.448 Mbps - E-2 Europe
6.312 Mbps - T-2, DS-2 North America
6.144 Mbps - Standard ADSL downstream
3.152 Mbps - DS-1c
2.048 Mbps - E-1, DS-1 Europe
1.544 Mbps - T-1, DS-1 North America
128 Kbps - ISDN
64 Kbps - DS-0, pulse code modulation
56 Kbps - 56flex, U.S. Robotics x2 modems, V.90 standard
33.6 Kbps - 56flex, x2 modem communications rate
28.8 Kbps - V.34, Rockwell V.Fast Class modems
20 Kbps - Level 1 cable, minimum cable data speed
14.4 Kbps - V.32bis modem, V.17 fax

9600 bps modem speed circa 1980s
2400 bps modem speed circa 1980s


UNITS OF MEASUREMENT

bit = smallest unit of digital information, i.e. ones & zeros
byte = a set of bits
Bps = bits per second
Kbps = kilobits per second =1000 bits per second
Mbps = Million bits per second =1,000,000 bits per second
Gbps = Gigabits per second = 1,000,000,000 (one billion)
bits per second
Tbps = Terabits per second = 1,000,000,000,000 (one trillion)
bits per second
Ebps = Exabits per second = 240 bits per second
Pbps = Petabits per second = 250 bits per second
Zbps = Zettabits per second = 270 bits per second
Ypbs = Yottabits per second = 280 bits per second
Obps = Googabity pers second = 2100 bits per second


*Editor’s note: individual components in the bandwidth measurement chart have not been separated by Open Systems Interconnect (OSI) protocol layer or media.