The Setup

Gigabyte Testbed
MA78GM-S2H - 780G
Processor AMD Phenom 9850
CPU Voltage 1.30V
Cooling AMD Retail
Power Supply PC Power & Cooling 610 Silencer
Memory Patriot PC2-6400 2x2GB
Memory Settings DDR2-800, 4-4-4-12 1.9V
Video Cards On-board HD3200, MSI HD3450
Video Drivers AMD 8.4
Hard Drive Western Digital Caviar SE16 640GB, Maxtor One-Touch External 300GB
Optical Drives Sony BDU-X10S, LG GGW-H20L
Case Silverstone CW03S-MT
Operating System Windows Vista Ultimate 64-bit
.

Nothing new here as we utilize our standard uATX test setup featuring the Gigabyte MA78GM-S2H 780G board that has become a standard fixture in the labs now. We will utilize our Maxtor One-Touch II External drive unit for our file copy tests.

The Specs

Rosewill Hub Specifications
RHUB-310 Seven-Port USB 2.0 Series
Standards USB 2.0, OHCI Rev. 1.0a, EHCI Rev. 0.95
Power Mode Bus-Powered via mini B-type cable, DC Adapter
USB Connectors A-type downstream x 7, mini B-type upstream x 1
Data Transfer Rate High-Speed (480Mbps), Full-Speed (12Mbps), Low-Speed (1.5Mbps)
OCP Yes, (USB 500 mA)
Bus-Powered 500mA for downstream ports, each port shares 100mA.
Power Supply 5V, 2A
Operating Temp 0C - 55C
Weight 104.2g ( product only ) ; 297.4g ( product with package )
Dimensions 94.5 x 45.5 x 15.5mm (LxWxH) without stand
50 x 50 x 103mm (LxWxH) with stand
Warranty One Year
System Requirements 1. A USB host controller installed on the computer.
2. Any OS that supports USB 2.0/1.1 specifications
Driver Support Win98se / Win XP / Win 2000 / WinMe / Vista / Mac OS
Current Price $24.99 at NewEgg
.

The Rosewill RHUB-310 series features seven USB 2.0 ports and is capable of bus-powered or DC adapter operation. When operating in bus-powered mode, the unit draws all of its power from the host computer's USB interface. USB current (power) specifications are allocated in units up to 100mA with a maximum available of 500mA per port in a compliant design. As such, a bus-powered design is limited to at best four downstream ports since it cannot provide more than four connections of 100mA to downstream devices. Rosewill provides a 2A power supply for the unit that will fall short of the maximum 3.5A draw if all seven ports are populated with devices that require the maximum 500mA per port.

Index Performance
Comments Locked

20 Comments

View All Comments

  • plonk420 - Tuesday, May 13, 2008 - link

    google. are YOU lazy?

    possible query: "usb devices running slow (on) hub" or "why is [device x] slow (on) usb hub"
  • ninjit - Wednesday, May 14, 2008 - link

    Reply to wrong post much?
  • crashem - Tuesday, May 13, 2008 - link

    It was short and sweet and got to the point. It Let us know about a new product that some one might use. Not everyone has a new system. I have been a member since this site started and I come back to it all the time. It was because of this site that I was able to learn and build my first computer(way back when). This site use to have articles for every level. I for one think this site needs to have a few more articles for the newbies so that they can learn and become advanced.
  • bakerzdosen - Tuesday, May 13, 2008 - link

    Well, I personally would have liked two things:

    1) Test it with a bus powered scanner (like a Canon lide). That's the only problem I had when hooking up my mother's USB hub, was that her scanner wouldn't do full scans (previews were fine) via her D-link USB hub I just bought for her - even when powered.

    2) A picture/description of the power brick. Smaller is definitely better here, and it seems that they're all out of control in size taking up 2-3 outlets if you use a UPS or surge protector.
  • mars2k - Tuesday, May 13, 2008 - link

    Cool review, I just bought another hub with fewer ports and no power source for just as much money. My bad...impulse buy.

    Most important about the review is getting a little attention to the Rosewill brand. I have bought serveral of their products and have always been amazed at the value. These guys seem to launch one good product after another. I have several external disk enclosures that work, are well built of high quality materials, are beautiful as objects, and were releativly cheap compared to other lesser products. Even the least exspensive of their product range has always impressed me with high perceived value.
    You don't see this brand marketed widely, if you do find something they make give them a chance I think you might be pleased.
  • strikeback03 - Tuesday, May 13, 2008 - link

    I purchased one Rosewill external enclosure for personal use, it has been fine. I purchased another for the lab, and two Samsung hard drives have died in it. Suppose the drives could have issues, but seems a big coincidence.
  • RamarC - Tuesday, May 13, 2008 - link

    a usb hub? i could understand a wireless usb hub since they're somewhat leading edge, but a run-of-the-mill wired usb hub?

    there are already plenty of sites that do 'reviews' of mundane components. stick with hardware reviews for the enthusiast and the IT community.
  • Sunrise089 - Tuesday, May 13, 2008 - link

    My assumption is that Gary needed a USB hub at the lab, and that since companies send AT hardware all the time, he decided to do a three-page write-up on the hub he selected. I don't object to that, so long as the next great GPU or CPU review isn't delayed.
  • Visual - Tuesday, May 13, 2008 - link

    How about test with multiple ports used at once? Like two drives, a drive and something low-bandwidth, or even all 7 ports used at once?

    Also I'd like to see results not in seconds, but in kbps, just to show how close to the theoretical 480kbps the thing gets. Well yeah, I can recalculate it myself, but... you could too.
  • DigitalFreak - Tuesday, May 13, 2008 - link

    u r lazy

Log in

Don't have an account? Sign up now