Readers who have been following the history of USB may remember that USB 2.0 was a rather underwhelming technology when it showed up in first products in late 2001. While it promised a data transfer rate of up to 480 Gb/s, the real life numbers were much closer to 250 Gb/s. It took several years until the technology improved and finally came closer to its 480 Gb/s specification.A representative for the USB Implementers Forum (USB-IF) told TG Daily that USB 3.0 will go through a similar evolution and not reach the promised 5 Gb/s initially. A prototype USB 3.0 hard drive on display at CES 2009 topped out a 165 MB/s in read operations and at 125 MB/s in write processes.
We need to stress that this was a (very fragile) hard drive prototype and bandwidth is likely to improve somewhat until actual products hit the market. However, we are told that we should not expect much more than 150 MB/s. Of course, that is still more than twice the maximum bandwidth of USB 2.0 and will be more than “enough” performance for most peripheral devices. For example, there are only few solid state disk drives that exceed a data transfer rate of 150 MB/s at this time.
หวังไว้เยอะ ออกมาได้แค่นี้เนี่ย กลุ้มเลย ปี 2009 อาจจะ เจออะไร ที่ผิดคาดเยอะก็ได้นะเนี่ย