首款PCI-E x4插槽四口USB 3.0扩展卡诞生-快科技-科技改变生活

首款PCI-E x4插槽四口USB 3.0扩展卡诞生

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2011年08月02日 10:37
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USB 3.0 PCI-E扩展卡我们见得多了，但同质化非常严重，几乎都是PCI-E x1插槽、两个USB 3.0接口。存储外设厂商HighPoint今天就推出了一款非常特殊的扩展卡，基于PCI-E x4插槽，USB 3.0接口也达到了四个。

该扩展卡型号“RocketU 1144A”，采用PCI-E 2.0 x4系统总线接口，总带宽2GB/s。可能是同时借助了PLX PEX8609桥接芯片的缘故，HighPoint宣称此扩展卡的总带宽为20Gbps(2.5GB/s)，分配到每个USB 3.0接口上正好是其理论极限带宽5Gbps(625MB/s)。

这块扩展卡使用了四颗祥硕ASM1042 USB 3.0主控制器，符合Intel xHCI标准规范，并通过PLX PEX8609桥接芯片将它们汇总到PCI-E x4界面。

HighPoint RocketU 1144A USB 3.0扩展卡现已开始发售，建议零售价89美元，约合人民币570元。

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