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file name	file content
CH634DS1.PDF	Industrial-grade 4-Port USB3.0 HUB Controller Chip CH634 Datasheet, integrates 5 USB3.2 Gen1 and 2 USB PD PHY and MTT mode processor, supports USB3.0 SuperSpeed 5Gbps, USB2.0 Hi-Speed 480Mbps, full-speed and low-speed, native supports for Type-C forward and reverse plugging, supports PDHUB and Type-C Power supply, supports SMBus and over-current detection.
CH339DS1.PDF	Industrial-grade 7-Port Multi-Function HUB Chip CH339 Datasheet, 7-port USB2.0 high-speed HUB chip, supports high performance MTT mode, 7 downstream ports concurrent processing, supports overcurrent detection and port power control, and at the same time has USB 100 Gigabit Ethernet, USB high speed SD card reader, USB PD and USB to SPI, USB to JTAG, USB to UART, USB to I2C interface and other functions. It can be applied to computer and industrial controller motherboards, docking stations, peripherals, embedded systems and other scenarios.
CH338DS1.PDF	Industrial-grade 7-port HUB chip CH338 datasheet, 7-port USB2.0 high-speed HUB chip, supports high-performance MTT mode, 7 downstream ports concurrent processing, supports over-current detection and port power control, can be applied to computers and industrial computer motherboards, peripherals, embedded systems, etc.
CH334DS1.PDF	CH334/CH335 datasheet. 4-port USB2.0 high-speed HUB controller. CH334/CH335 supports high-performance MTT, and supports over-current detection and port power control. One of the downstream facing ports of CH335 supports USB3.0 SuperSpeed passthrough upstream facing port. It can be applied to computers, industrial computer motherboards, peripherals, embedded systems, etc.