群联宣布USB 3.2主控：便携式SSD冲上1.3GB/s-快科技-科技改变生活

群联宣布USB 3.2主控：便携式SSD冲上1.3GB/s

上方文Q
2019年06月20日 22:51
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主控大厂群联电子宣布，正在研发一款支持USB 3.2 Gen 2x2(真正的USB 3.2)的控制器，型号“PS2251-17”(U17)，面向高性能的外置便携式SSD。

USB 3.0(现已改名USB 3.2 Gen 1)的带宽为5Gbps，USB 3.1(现已改名USB 3.2 Gen 2)翻番到了10Gbps，USB 3.2则继续翻番到了20Gbps。

群联U17主控支持两个NAND闪存通道和16个CE，可搭配各家的3D TLC、3D QLC闪存，系统接口可选Toggle 3.0、ONFI 4.0，并支持群联第四代LDPC校验、RAID ECC纠错、SmartZIP智能压缩、AES-256加密等各种技术。

群联宣称，该主控可以让便携式SSD达到1.3GB/s持续读取、200K IOPS随机读取的超高性能，这是USB 3.1时代难以想象的，当然实际产品的实际性能还要看闪存规格，以及厂商的具体配置。

群联计划今年第四季度试产PS2251-17主控，基于它的便携式SSD产品将在明年上半年问世。

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#群联电子 #USB 3.2 #固态硬盘

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