usb2.0和3.0的区别

[[{"txt": "\u5982\u4ecaUSB3.0\u6570\u636e\u63a5\u53e3\u6b63\u53d8\u5f97\u8d8a\u6765\u8d8a\u6d41\u884c\uff0c\u65b0\u63a8\u51fa\u7684\u7b14\u8bb0\u672c\u57fa\u672c\u4f1a\u62e5\u6709\u591a\u4e2aUSB3.0\u5c31\u53e3\uff0c\u5c31\u8fdeIVY\u65b0\u4e00\u4ee3\u5904\u7406\u5668\u5c81\u5bf9\u7528\u7684B75\u3001Z77\u7b49\u65b0\u4e3b\u677f\u76f8\u6bd4SNB\u5e73\u53f0\u4e3b\u677f\u7684\u5f88\u5927\u4e0d\u540c\u4e5f\u662f\u5728\u4e8eB75\u3001Z77\u7b49\u4e3b\u677f\u65b0\u589e\u589eUSB3.0\u9ad8\u901f\u63a5\u53e3\u3002\u4e0b\u9762\u6211\u4eec\u4e00\u8d77\u6765\u8c08\u8c08USB3.0\u3002"}], [{"txt": ["usb2.0\u548c3.0\u7684\u533a\u522b"]}, {"txt": "USB 3.0\uff0c\u591a\u4e48\u6d41\u884c\u7684\u4e00\u4e2a\u8bcd\uff01USB 3.0\u63a5\u53e3\u6807\u51c6\uff0c2008\u5e7411\u6708\u624d\u516c\u5e03\uff0c\u81f3\u4eca\u4e0d\u52303\u5e74\uff0c\u5e02\u9762\u4e0a\u65e9\u5df2\u6d8c\u73b0\u5927\u6279USB 3.0\u7684\u4ea7\u54c1\uff1aUSB 3.0\u4e3b\u677f\uff0cUSB 3.0\u79fb\u52a8\u786c\u76d8\uff0cUSB 3.0\u4f18\u76d8\uff0cUSB 3.0\u8bfb\u5361\u5668\uff0cUSB 3.0\uff0c\u4e0b\u9762\u6211\u4e48\u4ecb\u7ecdUSB3.0\u63a5\u53e3\u77e5\u8bc6\uff0c\u5e0c\u671b\u5bf9\u83dc\u9e1f\u670b\u53cb\u6709\u6240\u5e2e\u52a9\u3002\u3001"}, {"txt": "\u5a92\u4f53\u79f0\uff0cUSB 3.0\u7684\u4f20\u8f93\u901f\u5ea6\u662f4.8Gbps\uff0c\u662fUSB 2.0\u7684\u5341\u500d\u3002\u6ca1\u9519\uff0c\u662fG\u7ea7\u7684\uff0c\u4f46\u8fd9\u662f\u4f4d\uff08bit\uff09\uff0c\u800c\u4e0d\u662f\u5b57\u8282\uff08Byte\uff09\u3002\u5c31\u50cf\u4f60\u62c9\u4e00\u67614Mbps\u7684\u7f51\u7ebf\uff0c\u5b9e\u9645\u4e0b\u8f7d\u901f\u5ea6\u53ea\u80fd\u8fbe\u5230512KB/S\u4e00\u6837\u3002\u56e0\u4e3a8\u4f4d\uff1d1\u5b57\u8282\uff0c\u53734.8Gbps\uff1d600MB/S\uff0c\u8fd9\u8fd8\u662f\u7406\u8bba\u503c\u3002\u3001"}, {"img": ["https://exp-picture.cdn.bcebos.com/e076d77622bc7dc5f50a18eb5e460596b91429c1.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1", "https://exp-picture.cdn.bcebos.com/2a1ecb460596b814cbbd86b743d246fe464e22c1.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1"]}, {"txt": "600MB/S\uff0c\u786e\u5b9e\u633a\u5feb\u7684\u3002\u4f46\u8981\u8fbe\u5230\u8fd9\u4e2a\u901f\u5ea6\uff0c\u5fc5\u987b\u7a81\u7834\u8fd9\u4e24\u4e2a\u74f6\u9888\uff1a\u4e3b\u677f\u63a5\u53e3\u3001\u5b58\u50a8\u4ecb\u8d28\u3002\u4f60\u5174\u51b2\u51b2\u8dd1\u5230\u7535\u8111\u57ce\uff0c\u4e70\u4e86\u4e2aUSB 3.0\u7684\u79fb\u52a8\u786c\u76d8\u56de\u6765\u8bd5\uff0c\u53d1\u73b0\u8fd8\u662fUSB 2.0\u7684\u901f\u5ea6\uff0c\u8fd9\u74f6\u9888\u5f88\u53ef\u80fd\u51fa\u5728\u4e3b\u677f\u63a5\u53e3\u4e0a\u3002USB 3.0\u7684\u4e3b\u677f\uff0c\u5c3d\u7ba1\u5404\u8def\u5382\u5546\u90fd\u6709\u63a8\u51fa\uff0c\u4f46\u7531\u4e8e\u82f1\u7279\u5c14\u76ee\u524d\u5e76\u672a\u5728\u5176\u82af\u7247\u7ec4\u4e2d\u96c6\u6210USB 3.0\u7684\u4e3b\u63a7\u5236\u5668\uff0c\u6240\u4ee5USB 3.0\u7684\u4e3b\u677f\u5c1a\u672a\u666e\u53ca\uff0c\u4e5f\u6bd4\u8f83\u8d35\u3002\u4f60\u73b0\u5728\u770b\u5230\u7684\u6240\u8c13USB 3.0\u7684\u4e3b\u677f\uff0c\u90fd\u662f\u8fc7\u6e21\u4ea7\u54c1\uff0c\u5927\u591a\u662f\u901a\u8fc7\u7b2c\u4e09\u65b9USB 3.0\u4e3b\u63a7\u82af\u7247\u6765\u6865\u63a5\u51fa\u4e24\u4e2a\u84dd\u8272\u7684USB 3.0\u63a5\u53e3\u3002PS\uff1a\u5982\u679c\u4f60\u7684\u53f0\u5f0f\u673a\u4e3b\u677f\u6ca1USB 3.0\u63a5\u53e3\uff0c\u4f46\u4ecd\u6709\u7a7a\u95f2\u7684PCI-E\u63d2\u69fd\uff0c\u4f60\u53ea\u9700\u4e70\u5f20PCI-E\u8f6cUSB 3.0\u7684\u8f6c\u63a5\u5361\u5373\u53ef\uff1b\u7b14\u8bb0\u672c\u7684\u8bdd\uff0c\u4e70\u5f20PCMCIA\u8f6cUSB 3.0\u7684\u6269\u5c55\u5361\uff08USB 3.0 ExpressCard\uff09\u5c31\u884c\u3002\u8fd9\u79cd\u5361\u535670\u5757\u5de6\u53f3\uff0c\u7528\u5230\u7684\u8fd8\u662f\u90a3\u9897D720200F1\u3002USB 3.0 ExpressCard\u8f6c\u63a5\u5361"}, {"img": ["https://exp-picture.cdn.bcebos.com/b442d6d246fe474e86ee000bb0ef354f51b81fc1.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1", "https://exp-picture.cdn.bcebos.com/c3c22dbf3bef354f18d5878a23db574afb321bc1.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1"]}, {"txt": "\u5373\u4f7f\u4ece\u4e3b\u677f\u51fa\u6765\u6709USB 3.0\u7684\u63a5\u53e3\uff0c\u7528\u7684\u79fb\u52a8\u786c\u76d8\u4e5f\u662fUSB 3.0\u7684\uff0c\u5b9e\u9645\u4f20\u8f93\u901f\u5ea6\u80fd\u8fbe\u5230600MB/S\u5417\uff1f\u7ecf\u9a8c\u4e66\u5c0f\u7f16\u53ef\u4ee5\u5f88\u80af\u5b9a\u5730\u544a\u8bc9\u4f60\uff1a\u76ee\u524d\u6ca1\u620f\uff01\u53d7\u9650\u4e8e\u786c\u76d8\u7684\u673a\u68b0\u7ed3\u6784\uff0c\u4e3b\u6d41\u76843.5\u5bf87200\u8f6c500G\u786c\u76d8\u7684\u5185\u90e8\u4f20\u8f93\u901f\u5ea6\u4e0d\u4f1a\u8d85\u8fc7150MB/S\uff0c2.5\u5bf85400\u8f6c500G\u79fb\u52a8\u786c\u76d8\u7684\u5185\u90e8\u4f20\u8f93\u901f\u5ea6\u66f4\u4f4e\u3002\u6211\u66fe\u5728\u4e00\u53f0\u914d\u5907\u6280\u5609G41\u4e3b\u677f\u3001\u5954\u817eE5800 CPU\u3001DDR3 1333 2G\u5185\u5b58\u3001USB 3.0 Express Card\u7684\u4e3b\u673a\u4e0a\uff0c\u7528\u4e00\u4e2a120G\u914d\u5907USB 3.0\u63a5\u53e3\u7684\u79fb\u52a8\u786c\u76d8\u6765\u6d4b\u8bd5\uff0cATTO\u663e\u793a\u8bfb\u5199\u901f\u5ea6\u5206\u522b\u53ea\u8fbe\u5230\u4e8645MB/S\u548c47MB/S\uff08\u74f6\u9888\u5df2\u7ecf\u51fa\u73b0\u5728\u786c\u76d8\uff0c\u8fd9\u662f\u786c\u76d8\u7684\u4f20\u8f93\u901f\u5ea6\uff09\u3002\u5f53\u7136\uff0c\u6709\u7c73\u4eba\u58eb\u53ef\u4ee5\u4e70\u4e2aSSD\u56fa\u6001\u786c\u76d8\u6765\u8bd5\u8bd5\uff0c\u901f\u5ea6\u4f1a\u5feb\u4e0d\u5c11\uff08\u65b0\u51fa\u7684SSD\uff0c\u5176\u8bfb\u5199\u901f\u5ea6\u5df2\u8fbe\u5230500MB/S\uff09\u3002"}, {"img": ["https://exp-picture.cdn.bcebos.com/a99a494afa32939c629aec065719ce2c5a1b15c1.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1"]}, {"txt": "USB 3.0\u63a5\u53e3\uff0c\u5bf9\u4e8e\u67d0\u4e9b\u8bbe\u5907\u6765\u8bf4\uff0c\u53ea\u662f\u5546\u5bb6\u7684\u4e00\u79cd\u5671\u5934\u3002\u6bd4\u5982USB 3.0\u7684\u952e\u76d8\u9f20\u6807\uff0c\u548cUSB 2.0\u7684\u76f8\u6bd4\uff0c\u6709\u5565\u533a\u522b\u5417\uff1f\u6709\uff0c\u4f46\u6ca1\u610f\u4e49\uff0c\u56e0\u4e3a\u952e\u76d8\u9f20\u6807\u9700\u8981\u4f20\u8f93\u7684\u6570\u636e\u91cf\u975e\u5e38\u5c0f\uff0c\u7528USB 2.0\u90fd\u5df2\u7ef0\u7ef0\u6709\u4f59\u3002"}, {"txt": "USB 3.0\u4f18\u76d8\uff0c\u901f\u5ea6\u74f6\u9888\u5728\u4e8e\u6240\u91c7\u7528\u7684\u4e3b\u63a7\u548cFLASH\u82af\u7247\u4e0a\u3002\u524d\u6bb5\u65f6\u95f4\uff0c\u7167\u725b\u6392\u5230\u534e\u5f3a\u5317\u89c1\u8bc6\u4e86\u5199\u901f\u5ea6\u4e3a96MB/S\u3001\u8bfb\u901f\u5ea6\u4e3a110MB/S\u7684\u6781\u54c1U\u76d8\uff0c\u7528\u7684\u94f6\u707f\u4e3b\u63a7\uff0cFLASH\u597d\u8c61\u662f\u4e09\u661f\u6216\u9541\u5149\u7684SLC\uff08\u5bff\u547d\u548c\u901f\u5ea6\u90fd\u5927\u5927\u9ad8\u4e8e\u666e\u901a\u7684MLC\uff09\u3002\u5f53\u65f6\u6211\u5728\u60f3\uff0c\u5982\u679c\u90a3\u53f0\u7b14\u8bb0\u672c\u7528SSD\u7684\u8bdd\uff0c\u6b64U\u7684\u5b9e\u9645\u4f20\u8f93\u901f\u5ea6\u4f1a\u4e0d\u4f1a\u66f4\u5feb\u4e9b\uff1f\u6211\u7684\u91c7\u7528\u6167\u8363SM3252\u4e3b\u63a7+\u4e09\u661fSLC\u7684USB2.0 U\u76d8\uff0c\u5728USB 3.0 ExpressCard\u4e0a\u7684\u4f20\u8f93\u901f\u5ea6\uff0c\u74f6\u9888\u5728U\u76d8"}, {"img": ["https://exp-picture.cdn.bcebos.com/5a5a00def4dca0394572fd5858d96975f3c40dc1.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1"]}, {"txt": "USB 3.0\u8bfb\u5361\u5668\uff0c\u7c7b\u4f3c\u4e8e\u4f18\u76d8\u7684\u4e3b\u63a7 + FLASH\uff0c\u53ea\u662f\u8fd9\u4e2aFLASH\u4ee5\u201c\u5916\u6302\u201d\u7684\u5f62\u5f0f\u5b58\u5728\u3002\u5b9e\u9645\u4f20\u8f93\u901f\u5ea6\u66f4\u591a\u5730\u53d6\u51b3\u4e8e\u5b58\u50a8\u5361\u672c\u8eab\uff0c\u4e0d\u540c\u7684\u5b58\u50a8\u5361\uff0c\u901f\u5ea6\u5dee\u522b\u5f88\u5927\u3002\u5e02\u9762\u4e0a\u5e38\u89c1\u7684\uff0c\u90fd\u662f\u5199\u901f\u5ea6\u53ea\u6709\u51e0MB\u5230\u5341\u51e0MB\u7684\u5361"}, {"img": ["https://exp-picture.cdn.bcebos.com/d2987775f2c4ec99052e37b5c3fe1e425c6b07c1.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1"]}, {"txt": "\u629b\u5f00\u74f6\u9888\u95ee\u9898\u4e0d\u8c08\uff0cUSB 3.0\u63a5\u53e3\u7684\u4f20\u8f93\u901f\u7387\u8fd8\u8981\u770b\u6240\u4f20\u6587\u4ef6\u7684\u5927\u5c0f\u548c\u6570\u91cf\uff0c\u8fd9\u548cUSB 2.0\u662f\u4e00\u6837\u7684\u3002\u540c\u6837\u662f100M\u7684\u8d44\u6599\uff0c\u4f20\u8f93\u5355\u6587\u4ef6\u6bd4\u51e0\u767e\u4e2a\u96f6\u788e\u6587\u4ef6\u4f1a\u5feb\u4e0d\u5c11\u3002\u4e0d\u7ba1\u600e\u4e48\u8bf4\uff0cUSB 3.0\u662f\u4e00\u79cd\u8d8b\u52bf\uff0c\u5b83\u4e3a\u66f4\u5feb\u7684\u6587\u4ef6\u4f20\u8f93\u63d0\u4f9b\u4e86\u53ef\u80fd\uff0c\u867d\u7136\u76ee\u524d\u5b58\u5728\u5404\u79cd\u901f\u5ea6\u74f6\u9888\u30022012\u5e745\u670817\u65e5\u66f4\u65b0\uff1aUSB 3.0\u7684\u7406\u8bba\u754c\u9762\u901f\u7387\u662f5Gbps\uff0c\u4f46\u662f\uff0c\u5b83\u91c7\u7528\u4e868/10b\u7684\u7f16\u7801\u65b9\u5f0f\uff0c\u5c068\u4f4d\u7684\u6570\u636e\u7f16\u7801\u621010\u4f4d\u6765\u53d1\u9001\u3002\u6240\u4ee5\uff0cUSB 3.0\u7684\u7406\u8bba\u6570\u636e\u4f20\u8f93\u901f\u7387\u662f5Gbps/10=500MB/s\u3002USB 2.0\u5219\u6ca1\u6709\u91c7\u75288/10b\u7684\u7f16\u7801\u65b9\u5f0f\uff0c\u56e0\u6b64\uff0c480Mbps\u7684\u7406\u8bba\u754c\u9762\u901f\u7387\u53ef\u4ee5\u5168\u90e8\u7528\u6765\u4f20\u8f93\u6570\u636e\uff0c\u5373USB 2.0\u7684\u7406\u8bba\u6570\u636e\u4f20\u8f93\u901f\u7387\u662f480Mbps/8=60MB/s\u3002SB 3.0\u7684\u4f20\u8f93\u901f\u7387\u6bd4USB 2.0\u589e\u957f\u4e86500/60=8.3\u500d\uff0c\u800c\u4e0d\u662f10\u500d\u3002USB 3.0\u5f3a\u5316\u7684\u4f9b\u7535\u4e0d\u80fd\u4e0d\u63d0\u3002\u540c\u6837\u662f2.5\u82f1\u5bf8\uff0c\u4e5f\u540c\u6837\u662f5V\u7684\u4f9b\u7535\u7535\u538b\uff0c\u4f46\u79fb\u52a8\u786c\u76d8\u5bf9\u7535\u6d41\u7684\u8981\u6c42\u6709\u9ad8\u6709\u4f4e\u3002USB 2.0\u7aef\u53e3\u7684\u6700\u5927\u7535\u6d41\u4f9b\u5e94\u80fd\u529b\u4ec5\u6709500mA\uff0c\u5728\u65e0\u5916\u63a5\u7535\u6e90\u65f6\uff0c\u6211\u4eec\u7ecf\u5e38\u4f1a\u78b0\u5230\u4e00\u4e9b\u8017\u7535\u8f83\u9ad8\u7684\u79fb\u52a8\u786c\u76d8\u4e0d\u80fd\u5de5\u4f5c\u7684\u60c5\u51b5\uff0c\u5373\u4f7f\u52c9\u5f3a\u80fd\u5de5\u4f5c\uff0c\u635f\u574f\u786c\u76d8\u7684\u60c5\u51b5\u4e5f\u4e0d\u5c11\u89c1\u3002\u6709\u65f6\u628a\u79fb\u52a8\u786c\u76d8\u63a5\u5230\u80cc\u677f\u7684USB 2.0\u63a5\u53e3\u80fd\u7528\uff0c\u4f46\u63a5\u5230\u524d\u7f6e\u7684USB 2.0\u63a5\u53e3\u53ef\u80fd\u5c31\u65e0\u6cd5\u5de5\u4f5c\u4e86\uff08\u56e0\u4e3a\u7ebf\u6750\u4e0d\u826f\u538b\u964d\u8f83\u5927\uff09\u3002USB 3.0\u63d0\u5347\u4e86\u7535\u6e90\u8f93\u51fa\u80fd\u529b\uff0c\u6bcf\u4e2a\u7aef\u53e3\u6700\u9ad8\u63d0\u5347\u5230\u4e86900mA\uff0c\u5408\u8f93\u51fa\u529f\u73874.5W\uff0c\u5df2\u7ecf\u80fd\u591f\u6ee1\u8db3\u5927\u591a\u6570\u79fb\u52a8\u786c\u76d8\u7684\u9700\u8981\u3002\u4e0d\u7ba1\u600e\u4e48\u8bf4\uff0cusb3.0\u7684\u6570\u636e\u4f20\u8f93\u901f\u5ea6\u65b9\u9762\u76f8\u6bd4usb2.0\u786e\u5b9e\u6709\u4e86\u5f88\u5927\u7684\u63d0\u5347,\u968f\u7740USB3.0\u7684\u9010\u6e10\u6d41\u884c\uff0c\u672a\u6765USB3.0\u5c06\u9010\u6e10\u53d6\u4ee3\u76ee\u524d\u7684USB2.0\uff0c\u6709\u5174\u8da3\u7684\u670b\u53cb\u4e0d\u59a8\u53bb\u8be6\u7ec6\u4e86\u89e3\u4e0b\u3002"}]]