What is USB 3.0 ?

Posted on 29th Nov 2014 @ 7:24 PM

 

What is USB 3.0?

USB 3.0 is the next major revision to the Universal Serial Bus (USB). It offers the same ease-of-use and plug and play capabilities as previous generations of USB technologies but with a 10X performance increase and better power management. For users of USB 3.0, the goal of connecting devices to PCs or notebooks is still the same as the USB 2.0 specification.

USB 3.0

How Fast is USB 3.0?

The performance increase is achieved through the USB 3.0 technology, which allows multiple streams of data transfer and boosts its peak signaling bandwidth to 5Gbp/s compared to 480Mbp/s on USB 2.0. Although the specifications are 5Gbps, transfer speeds vary based on the controller and NAND Flash configuration. Currently USB 3.0 drives can be found with various architecture and channels.

Will a USB 3.0 drive work on my device with USB 2.0 ports?

USB 3.0 devices are compatible with USB 2.0 and USB 1.1 ports and connectors but will only run at the host device performance. USB 3.0 devices will, however, help to maximize the throughput of USB 2.0 ports.

Why do you need that much speed?

USB 3.0 helps you save more time and USB 3.01 drive transfers files faster than USB 2.0 drives. Depending on the number of channels the transfer speeds and the type of files you transfer, USB 3.0 can save you a lot of time compared to standard USB 2.0 drives.

Speed Chart

Will a USB 3.0 drive work on my device with USB 2.0 ports?

USB 3.0 devices are compatible with USB 2.0 and USB 1.1 ports and connectors but will only run at the host device performance. USB 3.0 devices will, however, help to maximize the throughput of USB 2.0 ports.

Why do I need a USB 3.0 drive when I use only USB 2.0 ports?

Due to the broad deployment of USB 2.0 devices in the market, USB 3.0 devices had to be backwards compatible. Even when you use USB 3.0 drives on your USB 2.0 host devices, you’ll save time.

Speed Chart


Storage
Capacity
Photos** Video Recording*** Storage Usage
6MP 8MP 10MP 12MP 18MP 24MP 9 Mbps (min.) 12 Mbps (min.) 24 Mbps (min.) 48 Mbps (min.) HD .MKV
Movies
Music
.MP3
Compressed
.MP4 Movies
PC Games Backups
2GB* 1,000 750 600 500 333 250 27 20 10 5 X 519 1 X X
4GB* 2,000 1,500 1,200 1,000 667 500 53 40 20 10 X 1,038 3 X X
8GB* 4,000 3,000 2,400 2,000 1,333 1,000 107 80 40 20 X 2,076 7 X X
16GB* 8,000 6,000 4,800 4,000 2,667 2,000 213 160 80 40 1 4,151 14 X X
32GB* 16,000 12,000 9,600 8,000 5,333 4,000 427 320 160 80 2 8,302 28 1 1
64GB* 32,000 24,000 19,200 16,000 10,667 8,000 853 640 320 160 5 16,605 56 3 2
128GB* 64,000 48,000 38,400 32,000 21,333 16,000 1,707 1,280 640 320 10 33,209 112 6 4
256GB* 128,000 96,000 76,800 64,000 42,667 32,000 3,413 2,560 1,280 640 21 66,418 224 12 9
512GB* 256,000 192,000 153,600 128,000 85,334 64,000 6,826 5,120 2,560 1,280 42 132,836 448 24 18
1TB* 512,000 384,000 307,200 256,000 170,668 12,800 13,652 10,240 5,120 2,560 84 265,672 896 48 36