StarTech.com 4 Port PCI Express (PCIe) SuperSpeed USB 3.0 Card Adapter w/ 4 Dedicated 5Gbps Channels - UASP - SATA / LP4 Power PEXUSB3S44V User Manual

Product codes
PEXUSB3S44V
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4 Port PCI Express (PCIe) SuperSpeed USB 3.0 Card Adapter w/ 4 Dedicated 5Gbps Channels - UASP -
SATA / LP4 Power
StarTech ID: PEXUSB3S44V
The PEXUSB3S44V 4-Port PCI Express USB 3.0 Card lets you add four, dedicated 5 Gbps USB 3.0 ports to
your PCIe x4-enabled PC. This independent port architecture improves USB 3.0 performance by transferring
data on four 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 four host controller chipsets, each port operates on a separate independent
transmission channel. Dedicating up to 5 Gbps to each USB port reduces performance bottlenecks, and
effectively quadruples your total available to bandwidth to 20 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 
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. See our UASP test results below for further
details.
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.
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.
www.startech.com
1 800 265 1844