
The StarTech PEXUSB3S44V PCI card is an advanced solution to expand USB connectivity on computers with a PCI Express 3.0 slot. This card offers four independent USB 3.2 Gen 1 (USB 3.0) ports, each with a dedicated channel capable of reaching up to 5 Gbps, significantly optimizing data transfer by avoiding common bottlenecks found in shared-bus cards. Equipped with four Renesas/NEC µPD720202 host controller chipsets, this adapter allows simultaneous and efficient management of multiple USB devices without performance loss, providing a combined total bandwidth of up to 20 Gbps. Designed in black with compact dimensions of 15 mm wide, 120 mm high, and 167 mm deep, it also includes an additional power connector supporting both SATA and 4-pin Molex connections, ensuring up to 900 mA per port for USB devices requiring higher power, exceeding the standard 500 mA for USB 2.0. This feature is crucial for users connecting external drives, storage devices, or high-power peripherals. The card supports the UASP (USB Attached SCSI Protocol), which significantly improves read/write performance on compatible devices, increasing transfer speeds by up to 70% compared to conventional USB 3.2 and reducing system resource usage by up to 80%, contributing to a smoother and faster experience. It is also backward compatible with USB 2.0 and 1.1 devices, ensuring broad compatibility. The design includes both a standard profile bracket and a low-profile/mid-height bracket, facilitating installation in compact or small form factor towers. This StarTech PCI Express card is certified to work with Windows operating systems (including Windows 10 and Windows Server 2008 R2 and later) and Linux kernel 2.6.37 or higher, ensuring versatility in professional and home environments. Overall, the PEXUSB3S44V is a reliable and efficient tool to expand high-speed USB ports with stable power delivery and optimized data transfer support, ideal for users needing powerful and stable connectivity in workstations or desktop PCs.
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