The following is compilation of various data transmission rate around us. I roughly converted values in M or Kbps to a more meaningful KB/s or MB/s, and then sorted them by transfer rate from slowest to fastest.
- HSCSD 3+1: 43.2 Kbps downstream, roughly 4 KB/s
- GPRS class 8: 57.6 Kbps downstream, roughly 5 KB/s
- IrDA (typical SIR): 115800 bps, roughly 11 KB/s
- RS-232 serial port: 115800 bps, roughly 11 KB/s
- CDMA2000 1xRTT: 144Kbps, roughly 14 KB/s
- EDGE: 384 Kbps, roughly 38 KB/s
- UMTS: 384 Kbps, roughly 38 KB/s
- Bluetooth 1.1: 723 Kbps, roughly 70 KB/s
- USB 1.1 (slow rate): 1.5 Mbps, roughly 150 KB/s
- Parallel port (SPP): 150 KB/s
- ADSL (1 pair half-duplex): 2Mbps (under 5Km length), roughly 200 KB/s
- CDMA2000 1xEV-DO: 3.1Mbps, roughly 300 KB/s
- IrDA (typical FIR): 4 Mbps, roughly 400 KB/s
- Ethernet: 10 Mbps, roughly 1MB/s
- Parallel port (EPP): 1 MB/s
- Wifi 802.11b: 11 Mbps, roughly 1.1 MB/s
- USB 2.0 full speed: 12 Mbps, roughly 1.5 MB/s
- Parallel port (ECP): 2 MB/s
- Wifi 802.11g: 54Mbps, roughly 5 MB/s
- Wifi 802.11a: 54 Mbps, roughly 5 MB/s
- FastEthernet: 100 Mbps, roughly 10MB/s
- Firewire 400: 400 Mbps, roughly 40 MB/s
- USB 2.0 high speed: 480 Mbps, roughly 57 MB/s
- Firewire 800: 800 Mbps, roughly 80 MB/s
