Sure. You could even add a usb3 hub and run several hard drives on one usb3 port
On 7 July 2015 at 15:16, Mark C <[email protected]> wrote: > Thanks, Toine - I had not considered drive speed at all! So - one card may > well handle it even at the reduced speed. > > Mark > > > On 7/7/2015 1:45 AM, Toine wrote: >> >> Maybe I'm in error: USB 3 drives are not fast enough to fill the >> entire usb3 bandwith. >> I have a similar setup, 2008 PC and added the cheapest usb 3 card >> (renasas chipset) I could find. >> the usb 3 drives are as fast or slow as the internal sata3 drives. >> >> >> On 7 July 2015 at 06:23, Larry Colen <[email protected]> wrote: >>> >>> Might this be a good time to look at finding a more modern mobo? You >>> might be able to find a used one with usb 3.0 for not much more than a usb 3 >>> card >>> >>> On July 6, 2015 8:17:03 PM MST, Mark C <[email protected]> wrote: >>>> >>>> I'm fixing to upgrade my circa 2009 PC with a USB 3.0 card. Knowing >>>> that >>>> there are many people here who understand this stuff better than I do - >>>> >>>> a few off topic questions... (since the USB card will be used to >>>> support >>>> drives that will store photos taken with my Pentax gear, it's not >>>> completely off topic...) >>>> >>>> It seems that you need at least a PCIe 2.0 slot with 5 GBps throughput >>>> to get full USB 3.0 speed. My PC only has two free PCIe 2.0 x1 slots >>>> @2.5 GBps each. The sole PCIe 2.0 x16 slot is occupied by the video >>>> card. There are also a couple free legacy PCI slots - I think they are >>>> 32 bit PCI slots. (The mother board manual simply calls them "PCI >>>> slots"). >>>> >>>> Adding a USB 3.0 card to one of the free PCIe x1 slots seems to be the >>>> obvious route to go. With PCIe x1 I will only get 50% of the possible >>>> maximum throughput. Based on what I read - that will still be a good >>>> bit >>>> faster than USB 2.0... If USB 3.0 is theoretically 10x faster than USB >>>> >>>> 2.0, then my theoretical increase will be 5x.... is that right? >>>> >>>> Would there be any point in even considering adding a USB 3.0 card to a >>>> >>>> legacy PCI slot? As best I can tell PCI has a maximum of 133MB/s or >>>> roughly 1 GBps so USB 3.0 on a PCI bus could be about twice as fast as >>>> USB 2.0??? I assume far short of the increase expected from using a >>>> PCIe >>>> x1 slot... >>>> >>>> As I understand it, each USB controller splits the bandwidth between >>>> all >>>> active devices connected to it. So if I am copying files between two >>>> USB >>>> drives hooked up to a single USB controller the bandwidth would be >>>> split >>>> between them. That makes me wonder - if I add two USB 3.0 cards to my >>>> PC - one in each of the free PCIe x1 slots - and put one drive on each >>>> card, will that result in each controller running at full speed when >>>> copying from drive to drive? That would be as fast as copying between >>>> two drives on a single controller running off a full speed PCIe 2.0 >>>> slot. Is my thinking right on that point? Since the USB cards are >>>> about $20 each, I'd give that a try if it would speed things up. >>>> >>>> Lastly - is there anything in particular - e.g. desirable chip sets or >>>> features or brands to avoid - in USB cards and hubs? (I plan to add at >>>> least one card and one external hub.) >>>> >>>> Thanks! >>>> >>>> --- >>>> This email has been checked for viruses by Avast antivirus software. >>>> http://www.avast.com >>> >>> -- >>> Sent from my Android phone with K-9 Mail. Please excuse my brevity. >>> >>> -- >>> PDML Pentax-Discuss Mail List >>> [email protected] >>> http://pdml.net/mailman/listinfo/pdml_pdml.net >>> to UNSUBSCRIBE from the PDML, please visit the link directly above and >>> follow the directions. > > > > --- > This email has been checked for viruses by Avast antivirus software. > http://www.avast.com > > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and > follow the directions. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
