CH340 USB to TTL serial port (i.e. UART, COM port)
CH340 realizes USB to UART serial port, compact and stable, economical and affordable. This module can switch between 5V/3.3V/1.8V level (VCC/TX/RX can be switched), and provides a maximum VCC current output of 500mA.
Some customers report that rates such as 102400 are not supported. Please note that only standard baud rates are supported. The details are as follows:
HT42 supports baud rates 2400/4800/9600/19200/38400/57600/115200/230400/460800/1700000/2300000/3400000, and other baud rates such as 921600 are not supported.
CH340 supports baud rate: 50, 75, 100, 110, 134.5, 150, 300, 600, 900, 1200,
1800, 2400, 3600, 4800, 9600, 14400, 19200, 28800, 33600, 38400, 56000, 57600, 76800, 115200,
128000, 153600, 230400, 460800, 921600, 1500000, 2000000.
This module is delivered with a 20cm Dupont cable 4P. If you need a USB extension cable, please purchase it together
main feature
● Original CH340 chip, quality assurance.
●Support Windows/Mac/Linux 32/64 bit operating system.
● The highest speed is up to 2Mbps (twice the 921600), and it supports standard baud rates such as 2400/9600/115200/921600.
● Both power supply VCC and signal level can be switched between 5V/3.3V/1.8V, and support different levels of signal and power supply.
● With independent LDO, the maximum output current can reach 500mA (the similar products on the market are generally lower than 200mA).
● Integrated power supply, sending and receiving three LED indicators.
● Integrated 500mA fuse, automatically disconnected when over-current/short-circuit, effectively protect the USB safety.
● Lead out all available IO, CTS/RTS/DTR/DSR/RI/DCD to facilitate hardware flow control.
● Integrated protection diode, the signal line will not damage the module if an abnormal voltage occurs occasionally.
● The volume is only 20*50mm, which only occupies the width of a USB interface, and does not affect the insertion of other devices.
Product Image
>> Shipping & Handling
1. Processing Time: 1-3 days for all orders.
2. Special Requests: Please list your special requests (color, package, etc) in the Notes Section when check out.
3. Shipping Way: Most orders(less than 2KG) are shipped by Aliexpress standard shipping / Netherland Post / Swiss Post
Under $5 orders are shipped by Seller Method Shipping.
Any other requirements about the shipping way, please contact us.
4. Delivery Time: Normally 15-60 days to get the order, except Brazil.Sometime the transit time may be long and vary,particularly during the holiday season.
Please contact us if you need help for the tracking.
5. Import Duties: Import duties, taxes and charges are not included in the item price or shipping charges.
>> Return & Refund
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Refund Policy: We provide reliable service policy.
• If you receive the goods broken. Contact us for Full money refund or replacement.
• If you don't receive the goods in stated delivery time. Contact us for Full money refund or replacement.
• If you receive the goods with quality problem, contact us for half or full amount refund.
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