StarTech 2 Port PCI Express (PCIe) SuperSpeed USB 3.0 Card Adapter, SATA Power

While maintaining a compact and durable design, the PEXUSB3S24 2-Port PCI Express USB 3.0 Card Adapter offers a reliable solution for enhancing your computer system with two additional high-speed USB 3.0 ports. This user-friendly adapter is compatible with both PCIe and USB 3.0, making it a versatile choice for a wide range of systems.The adapter comes with an optional SATA power connector, which can be connected to your system power supply to deliver up to 900mA of power per port to USB 3.0 bus-powered devices, and 500mA for USB 2.0 devices. This ensures optimal performance and power for your connected devices.Enhanced with UASP support (USB Attached SCSI Protocol), this USB 3.0 controller outperforms conventional USB 3.0 by up to 70% when paired with a UASP supported enclosure. UASP technology optimizes transfers by processing multiple commands simultaneously, significantly boosting transfer speeds and reducing wait time on data transfers.The PCIe USB 3.0 adapter complies with USB 3.0 standards, offering data transfer speeds of up to 5 Gbps. It also provides backward compatibility with existing USB 2.0 / 1.1 devices, ensuring your older devices can still be used effectively.For added versatility, the controller card comes with a standard profile bracket and includes a low-profile/half-height bracket, making it suitable for installation in small form-factor computers. UASP is supported in Windows 8, 8.1, Server 2012, and Linux kernel 2.6.37 or later. In testing, UASP demonstrated up to a 70% faster read and 40% faster write speed over traditional USB 3.0 at peak performance. Furthermore, UASP showed up to an 80% reduction in required processor resources, leading to improved CPU utilization.Whether you're looking to upgrade an older PCIe-based system from USB 2.0 to USB 3.0 connectivity, expand the USB capabilities of your system with two additional external ports, or connect additional external hard drives, CD/DVD drives, MP3 players, printers, scanners, webcams, game controllers, digital cameras, etc. to a computer system, this 2-Port PCI Express USB 3.0 Card Adapter is an excellent choice.