SKU:PEXUSB3S42V
StarTech.com 4 Port PCI Express (PCIe) SuperSpeed USB 3.0 Card Adapter w/ 2 Dedicated 5Gbps Channels - UASP - SATA / LP4 Power
The PEXUSB3S42V 4-Port PCI Express USB 3.2 Gen 1 Card lets you add four USB 3.2 Gen 1 ports with two dedicated 5 Gbps channels to your PCIe x4-enabled PC. This independent port architecture improves USB 3.2 Gen 1 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 3.2 Gen 1 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.
Enhanced with UASP support (USB Attached SCSI Protocol), this USB 3.2 Gen 1 controller performs up to 70% faster than conventional USB 3.2 Gen 1 when paired with a (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. See our UASP test results below for further details.
For high-power USB devices, this PCIe USB 3.2 Gen 1 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 3.2 Gen 1 bus-powered devices (500mA for USB 2.0). The USB 3.2 Gen 1 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 3.2 Gen 1 port.
The controller card is compliant with USB 3.2 Gen 1 standards while offering backward compatibility with existing USB 2.0 / 1.1 devices. For added versatility, the USB 3.2 Gen 1 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.
In testing UASP performed with up to a 70% faster read / 40% faster write speed over traditional USB 3.2 Gen 1 at peak performance.
More from the Manufacturer
The StarTech.com PCI Express USB 3.0 card adapter is engineered for exceptional performance, providing two dedicated 5Gbps channels. This ensures fast and reliable SuperSpeed data transfers ideal for external storage devices, cameras, and other peripherals. By separating bandwidth across multiple ports, the card effectively minimizes bottlenecks, delivering smooth and efficient operation especially when multiple USB devices are connected simultaneously.
This StarTech.com USB adapter supports USB Attached SCSI Protocol (UASP), a technology that significantly improves data transfer speeds compared to traditional USB mass storage. UASP reduces CPU utilization and lowers latency, allowing large file transfers and backups to complete more swiftly. With UASP enabled, users experience better overall system responsiveness when working with high-speed external drives connected through this PCIe card.
To ensure optimal powering of connected USB devices, the StarTech.com PCIe card adapter offers both SATA and LP4 power connectors. This design accommodates various power supply configurations and guarantees sufficient power delivery to all four USB ports, maintaining stable operation of demanding peripherals. The flexible power input options also make installation straightforward across a wide range of desktop PC environments.
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