Usb

Q3. How is SATA compared to USB and Firewire in speed? What performance gain can one expect by using SATA connection?

A3: Following chart shows the specification data rate(MBps) and Overhead among USB, Firewire and SATA.

Next table compares real world benchmark between USB, Firewire and SATA drives:

Raw Interface speed

Benchmark comparison 64K read

Benchmark

comparison

64K write

480Mbps

31.6MB/sec

26.5MB/sec

1394

400Mbps

34.8MB/sec

26.7MB/sec

Seria

1500Mbps

42.4MB/sec

56.2MB/sec

Burst

Transfer

Rate

33.5MB/sec

36.2MB/sec 111.3MB/sec

Table: Comparison of interface speeds and data transfer rates external disk drive interfaces

Above data are quoted from www.sata-io.org. The performance of G- S350SUAB2 in your application might be higher or lower depending upon the hard drive used, SATA and USB host and computer hardware. In our test, we have seen over 60MB/s sequential read and write speed in SATA connection. SATA is the better choice for storage device.