|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
|Price:||$79.98 & FREE Shipping|
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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
Power high-powered USB devices as necessary
The PEXUSB3S4V PCI Express USB 3.0 Card (with SATA Power) adds 4 external USB 3.0 ports to any PCI Express-enabled computer system with support for data rates up to 5 Gbps, while remaining backward compatible with USB 2.0 / 1.x devices.
Time-saving file transfers
The card uses a 'stacked' port layout that places the ports one on top of the other, enabling all four USB 3.0 ports to be external facing, while still allowing the card to fit into a small form factor/low profile computer system using the included low profile bracket.
Plus, with a built-in SATA power connector, each USB port can provide up to 900mA of power to devices that draw power from a host bus connection (500mA for USB 2.0) by connecting to your computer power supply.
Add 4 external USB 3.0 ports to a low profile or standard computer, through PCI Express
Upgrade an older PCIe-based system with USB 3.0 connectivity, to fully utilize USB 3.0 devices.
Expand a system's USB capabilities with four additional external USB ports, for connecting additional external hard drives, CD/DVD drives, MP3 players, printers, scanners, webcams, game controllers, digital cameras, etc.
Look for StarTech branded packaging to ensure you are getting a genuine StarTech product.
What's in the Box
1 - PCI Express USB 3.0 Card.
1 - Low Profile Bracket.
1 - Driver CD.
1 - Instruction Manual.
- 4 external USB 3.0 ports in a stacked layout
- UASP support for more efficient data transfer
- Fully compliant with USB 3.0 revision 1.0 specifications and Intel xHCI rev0.95 specifications
Compare with similar items
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.
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Not sure is all MOBO's do this (mine was a Gigabyte) but read your manual carefully, I have to say owning the Rift gave me a crash course on USB controllers. I also got a bios error when I installed it and had to reassign drive letters to all my USB 3.0 hard drives which all disappeared.
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 (v18.104.22.168, 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!
Well no more!! I installed this baby and no more usb issues. No more tracking chatter.
Didn't even need the drivers cd. windows 10 picked it up and installed the drivers and I AM EXTREMLY HAPPY WITH THIS PRODUCT.
Update - 7/20: StarTech sent me an RMA the same day I called to have this replaced. I filled it out and sent it back to them. They then emailed me back the same day and said they had shipped out a replacement and I did not need to return the defective item. I wish all companies stood behind their warranties like this and made it such an easy process. Will definitely purchase from this company again!
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