{"id":199,"date":"2025-08-20T20:15:16","date_gmt":"2025-08-20T12:15:16","guid":{"rendered":"https:\/\/blog.tacoin.site\/?p=199"},"modified":"2025-08-21T08:21:11","modified_gmt":"2025-08-21T00:21:11","slug":"td-owc-thunderbolt4-hub-teardown","status":"publish","type":"post","link":"https:\/\/blog.tacoin.site\/index.php\/2025\/08\/20\/td-owc-thunderbolt4-hub-teardown\/","title":{"rendered":"[TD] OWC Thunderbolt4 Hub Teardown"},"content":{"rendered":"

OWC Thunderbolt Hub with Three Thunderbolt 4 Ports and One USB Port<\/h1>\n

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PCB<\/h2>\n

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PCB1-Front<\/p>\n

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PCB1-Back<\/p>\n

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PCB2-Front<\/p>\n

Chips<\/h2>\n

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Intel\u00ae JHL8440 Thunderbolt\u2122 4 Controller<\/h3>\n

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CYPD5235: USB Type-C Port Controller<\/p>\n

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Parade FL5801: 5-Port USB2 Port Expander for TBT4 Docks<\/p>\n

Note: JHL8440 only extends THUNDERBOLT at all ports. Add this to support USB2.0 feature.<\/p>\n

infineon CY7C6521: USB-Serial Dual Channel (UART\/I2C\/SPI) Bridge with CAPSENSE\u2122 and BCD<\/p>\n

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TI MSP430FR2110: 16 MHz MCU with 2KB FRAM, 1KB SRAM, comparator, 10-bit ADC, UART\/SPI, timer.<\/p>\n

Note: Interact with JHL8440, BLUE LED for CONNECTED, WHITE for STANDBY.<\/p>\n

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Notes<\/h2>\n

Intel didn’t make full pcie3.0x4 thunderbolt 4 controllers. So there’s only TBT3\/USB4\/TBT5 SSD\/GPU docks:<\/p>\n