|Item model number||PEXUSB3S42V|
|Item Weight||7 ounces|
|Product Dimensions||8.3 x 5.5 x 1.5 inches|
|Item Dimensions L x W x H||8.27 x 5.51 x 1.5 inches|
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4 Port PCI Express (PCIe) SuperSpeed USB 3.0 Card Adapter w/ 2 Dedicated 5Gbps Channels - UASP - SATA / LP4 Power
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- Increase the efficiency of your USB 3.0 devices with two dedicated bus channels and up to 5 Gbps of bandwidth per channel
- Time-saving file transfers, up to 70% faster than traditional USB 3.0 when used with a UASP-supported enclosure
- Power high-powered USB devices as necessary, with the optional LP4 or SATA power connector
- Provides four external, USB 3.0 Ports on two independent bus channels
- Supports up to 10 Gbps total transfer bandwidth - Up to 5 Gbps per two ports
- UASP support across all four ports
- PCIe x4 interface compliant with PCI Express 2.0 specifications
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From the manufacturer
Add four USB 3.0 ports with two independent channels, LP/SATA power, and charging support to your PC through a PCI Express slot
The PEXUSB3S42V 4-Port PCI Express USB 3.0 Card lets you add four USB 3.0 ports with two dedicated 5 Gbps channels to your PCIe x4-enabled PC. This independent port architecture improves USB 3.0 performance by transferring data on two individual channels to your computer, giving you faster file transfers. When multiple devices are connected, traditional single bus USB 3.0 cards share your maximum bandwidth between all ports. By employing a second host controller chipset, the transmission channel is shared across two ports rather than four. Dedicating up to 5 Gbps for each set of two ports reduces performance bottlenecks, and effectively doubles your total available to bandwidth to 10 Gbps.
Optional LP4 or SATA power
For high-power USB devices, this PCIe USB 3.0 card includes an optional SATA or LP4 power connector to connect to your system power supply and deliver up to 900mA of power per port to USB 3.0 bus-powered devices (500mA for USB 2.0). The USB 3.0 card also supports USB Battery Charging Specification 1.2 (Apple Mode only), letting you charge compatible Apple devices (iPhones and iPads) faster than a standard USB 3.0 port.
Backward compatible with USB 2.0 and USB 1.0/1.1 devices
The controller card is compliant with USB 3.0 standards while offering backward compatibility with existing USB 2.0 / 1.1 devices. For added versatility, the USB 3.0 PCIe card is equipped with a standard profile bracket and includes a low-profile/half-height bracket for installation in small form-factor computers. Backed by a StarTech. com 2-year warranty and free lifetime technical support.
Improved Performance with UASP
UASP is supported in Windows 8, 8.1, Server 2012 and Linux kernel 2.6.37 or later. In testing UASP performed with up to a 70% faster read / 40% faster write speed over traditional USB 3.0 at peak performance.
More UASP Performance Statistics
At the same peak in testing, UASP also showed up to an 80% reduction in required processor resources. Test results were obtained using an Intel Ivy Bridge system, StarTech. com add-on USB 3.0 cards, a UASP-enabled StarTech. com enclosure, and a SATA III solid state drive.
Provides four external USB 3.0 ports
Upgrade an older PCIe-based system to USB 3.0 connectivity and UASP support to fully utilize USB 3.0 devices.
Hot-swap feature to connect/disconnect devices without powering down the system
Expand the USB capabilities of your system with four external ports for connecting additional external hard drives, CD/DVD drives, MP3 players, printers, scanners, webcams, game controllers, digital cameras, etc. to a computer system.
Includes a Low-Profile/half-height installation bracket
For added versatility, the USB 3.0 PCIe card is equipped with a standard profile bracket and includes a low-profile/half-height bracket for installation in small form-factor computers.
Look for StarTech. com Branded Packaging to ensure you are getting a genuine StarTech. com product
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|Sold By||Amazon.com||Inateck Online||Inateck Online||Rosewill Inc.||Amazon.com||MAILIYA|
|Item Dimensions||5.51 x 8.27 x 1.5 in||2.76 x 4.72 x 0.71 in||5.28 x 5.83 x 1.26 in||5.6 x 8 x 1.4 in||1.18 x 7.76 x 6.81 in||3.3 x 4.8 x 0.8 in|
Add four USB 3.0 ports with two independent channels, LP/SATA power, and charging support to your PC through a PCI Express slot. The PEXUSB3S42V 4-port PCI Express USB 3.0 card lets you add four USB 3.0 ports with two dedicated 5 Gbps channels to your PCIe x4-enabled PC. This independent port architecture improves USB 3.0 performance by transferring data on two individual channels to your computer, giving you faster file transfers. When multiple devices are connected, traditional single bus USB 3.0 cards share your maximum bandwidth between all ports. By employing a second host controller chip set, the transmission channel is shared across two ports rather than four. Dedicating up to 5 Gbps for each set of two ports reduces performance bottlenecks, and effectively doubles your total available to bandwidth to 10 Gbps. Enhanced with UASP support (USB attached SCSI Protocol), this USB 3.0 controller performs up to 70% faster than conventional USB 3.0 when paired with a UASP supported enclosure (Note: UASP requires a compatible operating system). using a more efficient Protocol than the traditional USB bot (bulk-only transport), UASP technology optimizes transfers by allowing multiple commands to be processed simultaneously, significantly increasing transfer speeds for less wait time on data transfers. For high-power USB devices, this PCIe USB 3.0 card includes an optional SATA or LP4 power connector to connect to your system power supply and deliver up to 900mA of power per port to USB 3.0 bus-powered devices (500mA for USB 2.0). the USB 3.0 card also supports USB battery charging specification 1.2 (Apple mode only), letting you charge compatible Apple devices (I phones and iPad) faster than a standard USB 3.0 port.
Top customer reviews
I went through a few USB3 cards and they just barely beat USB2 performance, when they worked at all. So it was a great pleasure when this just plugged in and worked after loading the drivers, which come supplied on a CD.
This board is really fast and lets you get the most out of your USB3 drives, especially external SSD drives, they really scream on this interface card. Hard disks or SSD is about the only thing that will benefit from USB3, most other things are slower, like a keyboard or mouse, even a TV USB box does not even tax USB2, but no doubt you will get a major boost in performance if you have USB3 drives currently plugged into USB2 ports.
Overall this is a great product that does exactly what is says it will do. I would not hesitate to suggest this to a friend and am very happy with this purchase. This cost about twice as much as many of them but well worth it, it works.
Hardware Installation Rating = 5
The physical install is very easy, open your PC, find an empty slot and plug it in. You can optionally provide the card additional power by plugging in a spare SATA power cord in your PC. If you do not have a SATA type connection or no spare power cords in your PC you can get one from Amazon for under 10 bucks. (Older PC tend to have 4 pin Molex power connectors, if that is your case you can get a Molex to SATA adaptor here for under 10 bucks.
The good news is that power cable is not required for the board to work unlike most of them, and if everything you plan to plug into it is powered itself then there is no need for the internal power. If you do plan to use the USB3 ports to power things you should hook up the extra power.
Software Installation Rating = 5
As easy as it gets, pop in the supplied CD and run set-up, reboot, and that is it. The CD I got had the most current drivers which was nice.
Performance Rating = 5
The real test was benchmarking it, with my original USB3 card I could not get more than about 90MB/s on a file copy, with this I am hitting 240 - 270MB/s, benchmarks and my USB3 SSD drive is insanely fast. With this card all of my USB3 drives are about twice as fast as with my old USB3 card. (the old one came with my PC and had an older chipset, it was faster than USB2 but not a lot.)
Note: if you have USB2 drives this is not going to make them go faster unless you have an underperforming USB interface, which is unlikely) However if you have been using USB3 devices with USB2 you will be blown away how much faster they go. I also tried some old USB2 drives and they worked perfectly, albeit slower by nature than a USB3 drive, but it hit full USB2 speeds with USB2 drives.
My system: HP Pavilion H8-1090t / Intel i7-990 Hex Core / 24GB RAM / 1xSSD internal SATA(500GB) / 2xSATA internal hard drives / 2xUSB3 2TB external drives (Seagate) / 1xUSB3 SSD (U32 Shadow)
With the card plugged in and the system booted, Windows tries, and fails, to install the Drivers automatically. If I download and install the latest RENESAS-USB3-Host-Driver (v220.127.116.11, 28-SEP-2012) from the StarTech PEXUSB3S44V Support web page, my system crashes every time it is awakened from Sleep - even if nothing is plugged into any of the cables.
As long as no Drivers are installed (rendering the card useless), my systems runs, sleeps, and wakes up just fine. But with the Drivers installed the system will only run OK until it goes to sleep - then it either doesn't wake up (have to press the Reset Button) or crashes with a Machine_Check_Exception. I suppose I could turn off the Sleep mode, but I don't really see that as being the solution for flaky drivers.
Does anyone have this card working successfully with Windows 7 Ultimate 64-Bit? Which Driver version are you using? What System Power Settings are you using (including Advanced Power Settings)? Thanks for any help!
I connected my monitor to one of the USB 3.0 ports using an uplink cable in order to power all of the USB ports on the monitor. The soundbar is connected to one of the monitor's USB 3.0 ports. An HDMI connection from my video card to the monitor provides both audio and video. The soundbar is my default audio device, which works great with this setup.
I also bought a 1 TB Western Digital USB 3.0 external drive that I connect to the StarTech card as well and it works great. Having both USB 3.0 ports that are fully powered along with an RJ-45 port for Ethernet all on one card is definitely convenient.
My computer, a Dell Dimension E510, is running Windows 7 Home Premium so it didn't install drivers automatically via plug and play. I didn't bother with the drivers that came with the card. I instead downloaded the latest drivers from StarTech's web site. I installed the USB 3.0 driver first, then the Ethernet driver. As soon as the drivers were installed everything worked. No rebooting required.
The only caveat is with the orientation of the USB 3.0 ports.
When the card is installed, the USB ports are vertically oriented. So USB plugs don't fully insert into the ports because they bump into the metal frame surrounding the PCI card's bracket. Everything works fine. It's just something to be aware of. If the ports were oriented horizontally, this wouldn't be an issue, but then there probably wouldn't be room for three USB ports.