- Up to 5.0 Gbps Data Transfer Rate
- PCI Express to USB Card
- USB 3.0
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love USB 3.0, This is a good card 02/07/2012
This review is from: Rosewill RC-505 - 2-Port USB 3.0 PCI Express Card
I like these Rosewill USB 3.0 cards so much, I've ended up buying 7 of these for myself and for others' computers. A fabulous add on, and one I put one in every new build, even if the motherboard already has some 3.0 connects.
This new version of the card, with a new improved chipset (out about 8+ months now) has been working great. Earlier cards with the previous chip set were sometimes flaky, but no problems here.
USB 3.0 [in general] is my preferred way to connect high speed devices. I like it as well, actually better, than eSATA since USB 3 supports USB 2.0 at higher speeds too; and is more versatile, you can add hubs, seems to dismount more easily, etc (all better).
SPEEDS are incredible! I'm getting 125 MBs/sec on a new 1 TB drive in a USB 3.0 enclosure.
Nothing really huge. You do need power running to the card (internally from the computer power supply using 4-pin molex plug like you'd attach to ATA hard drives) per the "power hungry" USB 3 specs (see comments below).
Note that most devices never use anywhere near the power available, so connecting the power is an minor annoyance when installing, and applies to ANY USB 3.0 card, not just this Rosewill.
I've have very, very rare (once a month if that) problems with connections. If you think your card isn't working, try a different cable or even a different port; and I've concluded one old USB 3.0 enclose is just bad, and same with a thumb drive that wouldn't work, so I've had no reason to doubt this card.
As reported in various articles, USB 3.0 will run USB 2.0 devices (like scanners and USB memory sticks) 2x-3x faster in every case I've tried, so that is another HUGE bonus.
USB 3.0 is getting better. It used to be some hubs and devices just wouldn't work together, but I've seen those issues disappear, or at least to the point of no concern.
I think the group that came up with the 3.0 specs and requirements were too aggressive, and as a result, it is hard to add a lot to a system. Modern motherboards often easily support 6-14 USB 2.0 direct ports, but you're lucky if you can get four USB 3.0 ports on Mobo: hence the need for cards like this.
I believe that is why 3.0 cards like this only have 2 and not 4 ports. I'm hoping as USB 3 matures we'll see add on cards with 4 ports.
I know I sound overly crazy about this, but this is the best tech for daily, "every user is helped" I've seen in a long time.
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