{"id":30756,"date":"2020-03-30T17:35:58","date_gmt":"2020-03-30T09:35:58","guid":{"rendered":"https:\/\/blog.seeedstudio.com\/?p=30756"},"modified":"2020-03-30T17:36:00","modified_gmt":"2020-03-30T09:36:00","slug":"two-pcie-to-usb-bridge-chip-solution-to-use-nvme-ssd-on-your-raspberry-pi-4","status":"publish","type":"post","link":"https:\/\/www.seeedstudio.com\/blog\/2020\/03\/30\/two-pcie-to-usb-bridge-chip-solution-to-use-nvme-ssd-on-your-raspberry-pi-4\/","title":{"rendered":"Two PCIe-to-USB bridge chip solution to use NVMe SSD on your Raspberry Pi 4"},"content":{"rendered":"\n<p>As we all know that one of the important improvements in Raspberry Pi 4 is its USB 3.0.<br><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"593\" height=\"246\" src=\"https:\/\/blog.seeedstudio.com\/wp-content\/uploads\/2020\/03\/image-57.png\" alt=\"\" class=\"wp-image-30757\" srcset=\"https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2020\/03\/image-57.png 593w, https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2020\/03\/image-57-300x124.png 300w\" sizes=\"(max-width: 593px) 100vw, 593px\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>RPi4 doesn\u2019t have an m.2 socket for SSD, but we can use an adapter to turn NVMe to USB3, like this:<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"611\" height=\"269\" src=\"https:\/\/blog.seeedstudio.com\/wp-content\/uploads\/2020\/03\/image-58.png\" alt=\"\" class=\"wp-image-30758\" srcset=\"https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2020\/03\/image-58.png 611w, https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2020\/03\/image-58-300x132.png 300w\" sizes=\"(max-width: 611px) 100vw, 611px\" \/><\/figure>\n\n\n\n<p>In the past two years, the PCIe to USB bridge chip solution for NVMe was basically dominated by JMicron&#8217;s JMS 583. But recently, Realtek, the second-largest chip manufacturer in Taiwan, also introduced a USB 3.1 Gen.2 to PCIe 3.0 \u00d7 2 bridge chip with the name <strong>RTL9210<\/strong>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"598\" height=\"317\" src=\"https:\/\/blog.seeedstudio.com\/wp-content\/uploads\/2020\/03\/image-59.png\" alt=\"\" class=\"wp-image-30759\" srcset=\"https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2020\/03\/image-59.png 598w, https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2020\/03\/image-59-300x159.png 300w\" sizes=\"(max-width: 598px) 100vw, 598px\" \/><\/figure>\n\n\n\n<p>As we can see, JMS583 is more complicated, and there are more peripheral components outside.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"509\" height=\"784\" src=\"https:\/\/blog.seeedstudio.com\/wp-content\/uploads\/2020\/03\/image-60.png\" alt=\"\" class=\"wp-image-30761\" srcset=\"https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2020\/03\/image-60.png 509w, https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2020\/03\/image-60-195x300.png 195w\" sizes=\"(max-width: 509px) 100vw, 509px\" \/><\/figure>\n\n\n\n<p>According to the reading and writing speed test, the same SSD uses the two different solutions, the speed is almost the same. However, the RTL9210 has a lower temperature and supports the sleep function without reading and writing, which greatly reduces the heat generation and power consumption.<\/p>\n\n\n\n<p><em>The information reference and pictures of the article are from Zhihu@sdcam<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>As we all know that one of the important improvements in Raspberry Pi 4 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