Add four USB 3.0 ports with four independent channels, LP/SATA power, and charging support to your PC through a PCI Express slotThe PEXUSB3S44V 4-Port PCI Express USB 3.0 Card lets you add four, dedicated 5 Gbps USB 3.0 ports to your PCIe x4-enabled PC. This independent port architecture improves USB 3.0 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 3.0 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 3.0 controller performs up to 70% faster than conventional USB 3.0 when paired with a UASP supported enclosure (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 3.0 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 3.0 bus-powered devices (500mA for USB 2.0). The USB 3.0 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 3.0 port.The controller card is compliant with USB 3.0 standards while offering backward compatibility with existing USB 2.0 / 1.1 devices. For added versatility, the USB 3.0 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.Improved Performance with UASPUASP 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.The StarTech.com Advantage
| Ports & interfaces | |
| Host interface: | PCIe |
| Output interface: | USB 3.2 Gen 1 (3.1 Gen 1) |
| Expansion card form factor: | Full-height / Low-profile |
| Expansion card standard: | PCIe 2.0 |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity: | 4 |
| Peripheral (Molex) power connectors (4-pin): | 1 |
| Design | |
| Internal: |  |
| Product colour: | Black |
| Maximum cable length: | 3 m |
| Features | |
| Chipset: | Renesas/NEC - µPD720202 |
| Data transfer rate (max): | 20 Gbit/s |
| UASP support: | |
| Operational conditions | |
| Operating temperature (T-T): | 0 - 50 °C |
| Storage temperature (T-T): | -20 - 60 °C |
| Operating relative humidity (H-H): | 5 - 85% |
| System requirements | |
| Windows operating systems supported: | Windows 10, Windows 10 Education, Windows 10 Education x64, Windows 10 Enterprise, Windows 10 Enterprise x64, Windows 10 Home, Windows 10 Home x64, Windows 10 IOT Core, Windows 10 Pro, Windows 10 Pro x64, Windows 7, Windows 7 Enterprise, Windows 7 Enterprise x64, Windows 7 Home Basic, Windows 7 Home Basic x64, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows 7 x64, Windows 8, Windows 8 Enterprise, Windows 8 Enterprise x64, Windows 8 Pro, Windows 8 Pro x64, Windows 8 x64, Windows 8.1, Windows 8.1 Enterprise, Windows 8.1 Enterprise x64, Windows 8.1 Pro, Windows 8.1 Pro x64, Windows 8.1 x64, Windows Vista Business, Windows Vista Business x64, Windows Vista Enterprise, Windows Vista Enterprise x64, Windows Vista Home Basic, Windows Vista Home Basic x64, Windows Vista Home Premium, Windows Vista Home Premium x64, Windows Vista Ultimate, Windows Vista Ultimate x64, Windows Vista x64 |
| Linux operating systems supported: | |
| Server operating systems supported: | Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016, Windows Server 2019 |
| Technical details | |
| Sustainability certificates: | RoHS |
| Weight & dimensions | |
| Width: | 15 mm |
| Depth: | 167 mm |
| Height: | 120 mm |
| Weight: | 92 g |
| Packaging data | |
| Drivers included: | |
| Manual: | |
| User guide: | |
| Package width: | 145 mm |
| Package depth: | 208 mm |
| Package height: | 41 mm |
| Package weight: | 202 g |
| Logistics data | |
| Harmonized System (HS) code: | 84733020 |
| Products per master (outer) case: | 40 pc(s) |
| Master (outer) case width: | 418 mm |
| Master (outer) case length: | 441 mm |
| Master (outer) case height: | 313 mm |
