Network Communication Speed Comparison Table

Theoretical ThroughputType of Service
28.8 kbpsPlain Old Telephone System (POTS)
56 kbpsSwitched 56
56 kbps - 34 MbpsSwitched Multimegabit Data Service (SMDS)
64 kbps Integrated Services Digital Network (ISDN)
64 kbps DS0
128 kbpsISDN Dual Channel
230.4 kbpsLocalTalk
640 kbps / 6 Mbps (upstream / downstream)Asymmetric Digital Subscriber Line (ADSL)
720 kbpsBluetooth wireless PAN (2.4 GHz band)
1 and 2 MbpsIEEE 802.11 wireless (2.4 GHz band)
1 MbpsCable Modem
1.544 MbpsDS1 / T1
2 MbpsPCS Wireless
2.048 MbpsE1
6.312 MbpsDS-2 / T2
8.448 Mbps E2
10 Mbps10Base-T Ethernet
11 MbpsIEEE 802.11b wireless Wi-Fi (2.4 GHz band)
12 MbpsUniversal Serial Bus (USB)
20-24 MbpsU-NII Wireles
25.6-155.52 MbpsAsynchronous Transfer Mode (ATM)
34.368 MbpsE3
40 Mbps (5 MBps)SCSI-1
44.736 MbpsDS3/T3
51.84 MbpsOC-1/STS-1 Synchronous Optical Network (SONET)
54 MbpsIEEE 802.11a wireless WLAN (5 GHz band)
54 Mbps / 11 MbpsIEEE 802.11g wireles WLAN (2.4 GHz band)
80 Mbps (10 MBps)Fast SCSI
100 Mbps100Base-T Ethernet (Fast Ethernet)
155.52 MbpsOC-3/STM-1
160 Mbps (20 MBps)Fast Wide SCSI
160 Mbps (20 MBps)Ultra SCSI
274.176DS-4/T4
320 Mbps (40 MBps)Wide Ultra SCSI
400 MbpsRireWire (IEEE 1394A)
466.56 MbpsOC-9/STM-3
480 MbpsUSB 2.0
622.08 MbpsOC-12/STM4
640 MBps (80 MBps)Wide Ultra2 SCSI
800 MbpsFireWire 800 (IEEE 1394B)
800 Mbps (100 MBps)ATA/100 (parallel)
1 GbpsGigabit Ethernet
1.244 GbpsOC-24/STM-8
1.280 Gbps (160 MBps)Ultra 160 SCSI
1.280 Gbps (160 MBps)Ultra3 SCSI
1.5 GbpsUltra Serial ATA 1500
1.866 GbpsOC-36/STM-12
2.488 GbpsOC-48/STM-16
2.560 Gbps (320 MBps)Ultra 320 SCSI
4.976 GbpsOC-96/STM-32
9.953 GbpsOC-192/STM-64
10 GBps10G Ethernet (IEEE 802.3ae)
13.271 GbpsOC-255
40 GbpsOC-768

Glossary
kbpskilobits per second. (kilo* = thousands)
MbpsMegabits per second. (Mega = millions)
MBpsMegabytes per second. (Mega = millions)
GbpsGigabits per second. (Giga = billions)
OC-n[Optical Carrier] A basic unit defined in increments where n is a multiple of that unit. Uses optical fiber network.
STM-n[Synchronous Transfer Module] A basic unit defined in increments of 155.52 Mbps (OC-3/STM-1 seed)where n is a multiple of that unit.
STS-n[Synchronous Transfer Signal] Similar to OC-n but uses electrical network
SCSISmall Computer System Interface
*Note
The lowercase "k" is used to describe decimal kilobits and usually used in networking.
The uppercase "K" is used to describe binary kilobytes and usually used with memory
capacity.
            

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