SKU:PEXUSB3S44V
StarTech.com 4 Port PCI Express (PCIe) SuperSpeed USB 3.0 Card Adapter w/ 4 Dedicated 5Gbps Channels - UASP - SATA/LP4 Power
The PEXUSB3S44V 4-Port PCI Express USB 3.2 Gen 1 Card lets you add four, dedicated 5 Gbps USB 3.2 Gen 1 ports to your PCIe x4-enabled PC. This independent port architecture improves USB 3.2 Gen 1 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 3.2 Gen 1 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 3.2 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.
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 3.2 Gen 1 at peak performance.
More from the Manufacturer
The StarTech.com 4 Port PCI Express (PCIe) SuperSpeed USB 3.0 card adapter delivers outstanding performance with four independent 5Gbps channels. This ensures that each USB port operates at maximum speed without bandwidth sharing, making it ideal for data-intensive devices like external hard drives and SSDs. With support for UASP (USB Attached SCSI Protocol), this card significantly improves data transfer efficiency and reduces CPU load, offering faster file transfers and smoother video streaming experiences.
Designed for simple installation, the StarTech.com USB 3.0 PCIe card fits easily into any available PCI Express slot on your desktop PC. It comes with SATA and LP4 power connectors, providing stable power to high-demand USB devices. Compatible with most major operating systems, including Windows and Linux, this adapter expands your system’s connectivity options, making it perfect for upgrading older PCs or building a high-performance workstation.
Equipped with both SATA and LP4 power inputs, the StarTech.com USB 3.0 card adapter guarantees consistent and reliable power delivery to connected devices, preventing disconnects or performance drops. The durable PCIe card design ensures long-lasting usage under heavy workloads. Whether you’re transferring large files, backing up data, or connecting multiple USB peripherals, this adapter provides the stability and speed required for professional-grade performance.
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