星恒科技 PEXUSB3S44V 4 通 PCIe USB 卡适配器与 UASP - SATA/LP4 电源 星恒科技 (StarTech.com)
星恒科技 PEXUSB3S44V 4 通 PCIe USB 卡适配器与 UASP - SATA/LP4 电源 星恒科技 (StarTech.com)
StarTech.com PEXUSB3S44V
授权合作伙伴
真实性保证: 授权合作伙伴经过制造商的审查，以出售正品产品。这几乎消除了购买假冒商品的风险，确保您获得您期望的质量和性能。
保证和支持: 从授权合作伙伴购买的产品通常都配备完整的制造商保修。此外，如果您遇到任何问题，您更有可能获得及时和官方支持，包括维修、更换或故障排除帮助。
访问完整产品范围: 授权合作伙伴通常可以访问制造商的整个产品系列，包括最新款式甚至是未经授权渠道可得的独家商品。
专业知识和建议: 授权销售商通常对他们销售的产品有更好的了解和培训，为客户提供专业的建议，以满足其需求。这可以提升购物体验，确保您找到最适合您需求的产品。
软件和固件更新： 购买技术产品时，从授权合作伙伴购买可确保您的设备有资格直接从制造商那里获得软件和固件更新。这些更新可以提高性能，添加功能并修复错误。
再售价值: 从授权经销商购买的产品通常保留更高的转售价值。 真实性和可转让保修的保证可以使它们对未来买家更具吸引力。
心安理得 总的来说，从授权合作伙伴购买可以让您安心，因为您知道您购买的是正品产品，并受到完整的制造商支持，而没有任何与假冒或灰色市场物品相关的风险。
这些好处综合起来，对于选择授权合作伙伴而不是未经授权的转售商提出了强有力的论据，尤其是对于高价值物品或产品真实性和售后支持至关重要的考虑。
- Free Shipping
- 2 Year 保修
- 30天退货
- 碳中和
产品关键特征
- 提供四个外部独立的USB 3.2 Gen 1端口
- 支持高达20 Gbps的总传输带宽 - 每个端口最高5 Gbps
- 所有四个端口均支持UASP
- 符合PCI Express 2.0规范的PCIe x4接口
- 可选LP4或SATA电源连接器，为每个USB端口提供高达900mA电流
星恒科技 PEXUSB3S44V 4 通 PCIe USB 卡适配器与 UASP - SATA/LP4 电源 星恒科技 (StarTech.com)
StarTech.com PEXUSB3S44V
授权合作伙伴
真实性保证: 授权合作伙伴经过制造商的审查，以出售正品产品。这几乎消除了购买假冒商品的风险，确保您获得您期望的质量和性能。
保证和支持: 从授权合作伙伴购买的产品通常都配备完整的制造商保修。此外，如果您遇到任何问题，您更有可能获得及时和官方支持，包括维修、更换或故障排除帮助。
访问完整产品范围: 授权合作伙伴通常可以访问制造商的整个产品系列，包括最新款式甚至是未经授权渠道可得的独家商品。
专业知识和建议: 授权销售商通常对他们销售的产品有更好的了解和培训，为客户提供专业的建议，以满足其需求。这可以提升购物体验，确保您找到最适合您需求的产品。
软件和固件更新： 购买技术产品时，从授权合作伙伴购买可确保您的设备有资格直接从制造商那里获得软件和固件更新。这些更新可以提高性能，添加功能并修复错误。
再售价值: 从授权经销商购买的产品通常保留更高的转售价值。 真实性和可转让保修的保证可以使它们对未来买家更具吸引力。
心安理得 总的来说，从授权合作伙伴购买可以让您安心，因为您知道您购买的是正品产品，并受到完整的制造商支持，而没有任何与假冒或灰色市场物品相关的风险。
这些好处综合起来，对于选择授权合作伙伴而不是未经授权的转售商提出了强有力的论据，尤其是对于高价值物品或产品真实性和售后支持至关重要的考虑。
- Free Shipping
- 2 Year 保修
- 30天退货
- 碳中和
小时
分钟
航运资讯
产品关键特征
- 提供四个外部独立的USB 3.2 Gen 1端口
- 支持高达20 Gbps的总传输带宽 - 每个端口最高5 Gbps
- 所有四个端口均支持UASP
- 符合PCI Express 2.0规范的PCIe x4接口
- 可选LP4或SATA电源连接器，为每个USB端口提供高达900mA电流
产品
StarTech.com
PEXUSB3S44V
The 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 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.
Return Policy |
Time to Return |
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Standard Return Policy |
We offer a hassle-free 30-day returns policy for domestic (US) orders, excluding non-refundable items. Refund or Replacement within 30 days of the delivery date. All products that fall under the Standard Return Policy qualify for our 30-Day Hassle-Free Returns. Please see the section above for more details. |
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Replacement Only Return Policy |
Replacement within 30 days of the delivery date. |
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Manufacturer Only Return Policy |
Covered by the manufacturer's warranty. Please refer to the terms and conditions for the manufacturer's warranty or contact the manufacturer. |
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Holiday Extended Return Policies |
Extended Holiday Return Policy.Qualifying purchases of products displaying the " Extended Holiday Return Policy ", from November 1st, 2023 to December 25, 2023, are eligible for a Refund or Replacement until January 31, 2024. Extended Holiday Replacement-Only Return PolicyQualifying purchases of products displaying the " Extended Holiday Replacement-Only Return Policy ", from November 1st, 2023 to December 25, 2023, are eligible for a Replacement until January 31, 2024. |
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