Startech.com 4 -Port USB 3.0 PCI Express Card Adapter - PCIe Superspeed USB 3.0 Expansion Card W/ 2 Dedicated 5GBPS Channels (Pexusb3S42V)

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With the 4-port PCI Express USB 3.0 card PexusB3S42V you can add four USB 3.0 ports with two dedicated 5 Gbit/S channels to a PCIe X4-compatible PC. This architecture with independent ports improves the USB 3.0 output by transferring data to two individual channels to the computer, so that the file transmission takes place faster.
If several devices are connected, the maximum bandwidth with conventional single bus USB 3.0-- Cards distributed over all ports. By using a second Host controller chipset, the transmission channel is only used by two instead of four ports. By assigning up to 5 GBIT/s on two ports, performance bottlenecks are reduced and the overall available bandwidth is effectively doubled to 10 GBIT/s. In combination with a [%group ID = "114" text = "Uasp-capable housing" Append_Qs = "filter_uasp_yn = yes"%] faster than a conventional USB 3.0 (Note: A compatible operating system is required for UASP) . With a more efficient protocol than the conventional USB (Bulk-only Transport), UASP technology optimizes the transmission through the simultaneous processing of several commands, so that the transmission speed increases significantly and the waiting times for data transmission are reduced. Further information can be found in our UASP test results below.
For High Power USB devices, this PCIe USB 3.0 card has an optional SATA or LP4 power connection to connect to the power supply of the system and provide them to 900 mA electricity per port for USB 3.0 bus operated devices (500 mA for USB 2.0). The USB 3.0 card also supports the USB Akculade specification 1.2 (only Apple mode), so that you can load compatible Apple devices (iPhones and iPads) faster than with a standard USB 3.0 port.
The controller -Card is compliant with USB 3.0 standards and downwards compatible with existing USB 2.0/1.1 devices. For additional versatility, the USB 3.0 PCIe card is equipped with a standard profile slot sheet and is delivered with a low profile /semi-height slot sheet for installation in compact computers.
is with a 2-year startech.com guarantee as well as Lifelong free technical support delivered.
Improved performance with UASP
In tests, UASP showed up to 70 % higher reading speed and 40 % higher writing speed compared to a conventional USB 3.0 with peak performance.
At the same tip In the test, Uasp also showed an 80 %reduction in processor resources. SATA III-Solid State Drive achieved.

• offers four external USB 3.0 ports on two independent bus channels
• supports up to 10 Gbit/s transmission bandwidth-up to 5 GBIT/S two ports
• UASP support for all four ports
• Startech.com 4 Port USB 3.0 Superspeed