USB to Multi-Protocol Serial Adapter: RS-232 / TTL UART / RS-485

USB to Multi-Protocol Serial Adapter: RS-232 / TTL UART / RS-485

Marsoni

M251S

$37.00

Get it in 3 business days with 1 day shipping. Friday, May 29

USB to Multi-Protocol Serial Adapter: RS-232 / TTL UART / RS-485The USB to Multi Protocol Serial Adapter is a versatile serial communication interface that supports RS 232 serial, TTL UART serial, RS485, and RS422 protocols. It features quick connecting screw terminals, eliminating the need for soldering or special cables. Simply plug the adapter into a computer's USB A port. The USB connector is flippable for convenience, ensuring the labels and LEDs can always face you. Inside, an FTDI FT231 USB to serial

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This watch is a complete disappointment. Right out from the box, I adjusted the time per the instruction manual. After finshing adjusting the watch, I pushed the crown in (two clicks). The second hand started movement after almost 10 seconds. From then on, the second hand was stopping and going by itself. Within less than anhour, the watch was behind almost 25 seconds. It is a piece of junk. I would not advise anyone to buy this watch.

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Reviewed in the United States on February 13, 2026