Tx rates

SATA and eSATA:

Original SATA, or SATA/150, has a data transfer speed of 150 (MB/s), 1.5Gbps.

SATA II or SATA/3Gbs doubled the speed to 300 MB/s or 3 gigabits per second. This is also sometimes referred to as SATA/300.

Some sources report SATA/600 will be available by 2007.

(http://www.wisegeek.com/what-is-esata.htm)

USB:

USB 2.0: 480Mb/s for attached high speed USB 2.0 peripherals

USB 1.1: 12Mb/s or 1.5Mb/s

  • High Speed – 480Mbits/s
  • Full Speed – 12Mbits/s
  • Low Speed – 1.5Mbits/s

(http://www.usb.org/developers/whitepapers/usb_20t.pdf)


eSATA SATA 300 PATA 133 FireWire 800 FireWire 400 USB 2.0 Ultra-320 SCSI
Speed (Mbit/s) 2400 2400 1064 786 393 480 (burst) 2560
Max. cable length (m) 2 1 0.46 4.5 (16 cables can be

daisy chained up to 72 m)

4.5 (16 cables can be

daisy chained up to 72 m)

5 (USB hubs can be

daisy chained up to 25 m)

12
Power provided No No No Yes (12-25 V, 15 W) Yes (12-25 V, 15 W) Yes (5 V, 2.5 W) No
Devices per Channel 1 (15 with port multiplier) 1 per line 2 63 63 127 16

(http://www.answers.com/topic/serial-ata?cat=technology)

GRAPH(s):

(http://www.addonics.com/products/host_controller/images/throughput_comparison…)

(http://www.tomshardware.com/2006/04/17/thecus_brings_sata_to_external_storage…)

(http://en.wikipedia.org/wiki/List_of_device_bandwidths)

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~ by nambabwe on 2007/07/21.

 
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