Solved Inateck 4 Ports PCI-E to USB 3.0 Expansion Card for Mac Pro

July 23, 2014 at 00:53:52
Specs: Windows 7
Is Inateck 4 Ports PCI-E to USB 3.0 Expansion Card for Mac Pro suitable for most device including a Black magic intensity USS 3 capture desk?

See More: Inateck 4 Ports PCI-E to USB 3.0 Expansion Card for Mac Pro

Report •

#1
July 23, 2014 at 12:02:25
✔ Best Answer
First, you have to make sure you have a free PCI Express port available on your motherboard.

Admittedly, I'm not particularly familiar with Mac's, so I would suggest looking in your computer manual. If you've lost the manual, you can find it online here.

Could you also provide a link to the exact PCIe Expansion card you are talking about? Inateck makes quite a few of those.

Just note that you will probably be significantly limited in your bandwidth if you plan on populating all four USB 3.0 ports.

One USB 3.0 has a maximum bandwidth of 5 Gbit/s, so that means the card could use up to 20 Gbit/s in total.

A PCIe x1 port will provide 4 Gbit/s, so if the card is x1 then you will be bottlenecked by using even 1 of the four USB 3.0 ports.

A PCIe x4 has four times the throughput as an x1, so 16 Gbit/s, which could still be a limitation.

A PCIe x8 provides a 32 Gbit/s transfer rate. The only problem with this is that you are wasting 12 Gbit/s (which could give you 2 extra USB 3.0 ports), and x8 cards aren't very common.

Just note that if you plan on using a USB 2.0 device(s) in the card you should be fine with even a PCIe x1, as one USB 2.0 uses about 1/10 of the bandwidth of USB 3.0 (500 Mbit/s, or 2 Gbit/s if all four ports are being used). In fact, you could probably cram 8 USB 2.0 ports into one PCIe x1 card (or 16 USB 1.0).

Dunno exactly what you'll be using this capture device for, but you should know that HDMI cables use anywhere from 5 Gbit/s to 18 Gbit/s, so you could be severely limiting yourself by going with USB. (Although I believe that if you are only doing 1080p @ 60 Hz you will *barely* be fine).

User Info Page Biography for full specs.


Report •

#2
July 23, 2014 at 20:36:50
HI, thanks for your respond,i bought this card form here http://www.amazon.co.uk/Optimized-P...

Report •

#3
July 23, 2014 at 20:48:13
Yeah, it looks like a PCIe x1 based on the link you gave me. As I said above,

"A PCIe x1 port will provide 4 Gbit/s, so if the card is x1 then you will be bottlenecked by using even 1 of the four USB 3.0 ports."

Though it is noteworthy that most supposed "USB 3.0" devices run at even less than USB 2.0 speeds.

Not sure exactly how it's optimized for Mac, other than simply having driver support.

User Info Page Biography for full specs.


Report •

Related Solutions

#4
July 23, 2014 at 23:32:44
Thank you very much!

Report •

Ask Question