CCitizenTO wrote:I think people are disappointed with USB3.0 peripherals on the RPi because to maintain compatibility they will fall back to USB2.0 speeds thus they wont get the same performance out of them as they would if they hooked them up to their newer desktop or laptop machines that have a USB3.0 port.
Chart of USB Speeds
USB1.0: 15Mbps (1.88MB/s)
USB2.0: 480Mbps (35MB/s)
USB3.0: 5Gbps (625MB/s)
Chart of SATA Speeds
SATA1: 1.5Gbps (0.19GB/s)
SATA2: 3Gbps (0.34GB/s)
SATA3: 6Gbps (0.75GB/s)
Also I dont think the Pi can handle speeds like 5Gbps. Which is probably why it does not have a 1Gbps Ethernet Adapter (aside from cost considerations as well). That said I've never managed to download something faster than maybe 100-200MB/s on my connection to the internet so that doesnt really matter.
Also you have to keep in mind that conventional drives (rotating spindle) have hit their peak in terms of data throughput. They are big, inexpensive but SLOW. SSDs are small, expensive but FAST. This is ofcourse assuming the same pricing points. There are 2TB SSDs out there that cost you an arm and a leg.
It may just be you have a USB3.0 SATA dock laying around or a USB3.0 one cost as much as a USB2.0 one. But functionally working with the Pi and working with conventional drives they're equivalently the same because it wouldnt take advantage of the higher speeds USB3.0 has to offeranyways.
Thanx for your reply.
I have instead used Seagate Expansion External 2TB USB Drive. Formatted in NTFS so I can in case that RPi does not work straight into Windows XP machine.
But the speed of writing any files to the HDD is so slooow. I have connected both HDD to the USB ports and in MC try to shift some +1GB files between the 2 disk (both NTFS) and that was so slow.
But as s sort of NAS the RPi works perfect.
Could SATA or IDE HDD be attached to RPi?