Computer Accessories > USB/Firewire Adapters StarTech.com 2 Port PCI Express (PCIe) SuperSpeed USB 3.0 Card Adapter with UASP - SATA Power PEXUSB3S24 Manufacturer: StarTech.com Product ID: PEXUSB3S24 UPC: 065030855587 List Price : $40.67 Our Price : $Price 40.67 29.73 Quantity Buy Now Description & Specs Reviews Warranty Description Condition: New Add 2 SuperSpeed USB 3.0 ports with SATA power to your PCI Express-enabled PC. The PEXUSB3S24 2-Port PCI Express USB 3.0 Card lets you add two USB 3.0 ports to your PCI Express-enabled computer system, with an optional SATA power connector to connect to your system power supply and deliver up to 900mA of power per port to USB 3.0 bus-powered devices (500mA for USB 2.0). Enhanced with UASP support (USB Attached SCSI Protocol), this USB 3.0 controller performs up to 70% faster than conventional USB 3.0 when paired with a UASP supported enclosure (Note: UASP is not supported by all operating systems). 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. The PCIe USB 3.0 adapter is compliant with USB 3.0 standards for data transfer speeds up to 5 Gbps, while still offering backward compatibility with existing USB 2.0 / 1.1 devices. For added versatility, the controller 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. Improved Performance with UASP 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 3.0 at peak performance. At the same peak in testing, UASP also showed up to an 80% reduction in required processor resources. Test results were obtained using an Intel® Ivy Bridge system, StarTech.com add-on USB 3.0 cards, a UASP-enabled StarTech.com enclosure, and a SATA III solid state drive.2 Port PCI Express (PCIe) SuperSpeed USB 3.0 Card Adapter with UASP - SATA Power Specifications General InformationProduct Type: USB AdapterBrand Name: StarTech.comManufacturer: StarTech.comProduct Name: 2 Port PCI Express (PCIe) SuperSpeed USB 3.0 Card Adapter with UASP - SATA PowerManufacturer Part Number: PEXUSB3S24Manufacturer Website Address: http://www.startech.comPackaged Quantity: 1Interfaces/PortsTotal Number of USB Ports: 2Number of USB 3.0 Ports: 2Physical CharacteristicsHeight: 2.6"Width: 0.9"Form Factor: Plug-in CardLength: 2.4"Weight (Approximate): 1.98 ozMiscellaneousPlatform Supported: PCPlatform Supported: LinuxTechnical InformationHost Interface: PCI Express Related Items StarTech.com 3-Port USB-C Hub with LAN Port - 10 Gbps - 2x USBA & 1x USB-C - Powered HB31C2A1CGS HB31C2A1CGS Your Price: 78.79 Qty: Buy Now Details StarTech.com 4X4 USB 3.0 Peripheral Sharing Switch HBS304A24A HBS304A24A Your Price: 113.12 Qty: Buy Now Details StarTech.com 4 Port Industrial USB 3.0 Hub - Mountable - Rugged USB Hub ST4300USBM ST4300USBM Your Price: 126.71 Qty: Buy Now Details StarTech.com 7 Port PCI USB Card Adapter PCIUSB7 PCIUSB7 Your Price: 22.60 Qty: Buy Now Details StarTech.com 4 Port IEEE-1394 FireWire PCI Card PCI1394MP PCI1394MP Your Price: 31.29 Qty: Buy Now Details StarTech.com 3-Port USB-C Hub with SD Card Reader - 10Gbps - 3x USB-A HB31C3ASDMB HB31C3ASDMB Your Price: 61.76 Qty: Buy Now Details