USB 1 x RS232, COM port for Android tablet / phone. Micro USB

High-speed USB to RS232/422/485 adapter
Transmission speed - up to 921.6 kbps
Supports USB 1.2/2.0/3.0
3000V DC isolation on RS232/422/485
RS232/422/485 cannot be used simultaneously
Supplied via the USB port
Automatic RS485 Direction Control
Temperature range: -25°C - +75°C
DIN rail mounting
Windows 98/ME/2000/XP/Vista (32/64-bit)
Windows 7 / 8.1 / 10 (32/64-bit)
Win 2012
Linux

MOXA, 1-port RS-232 USB to serial adapter.

Compatible with USB 2.0 and 12 Mbps USB data rate
921.6 Kbps maximum baud rate for super fast data transfer
Drivers are provided for Windows, WinCE and Linux
DB9 male. USB2.0 with 80cm cable
LEDs for displaying USB and TxD / RxD activity
15 KV ESD protection for all serial ports
OS support: Windows 11, 10, 8.1, 8, 7, Vista, ME, and XP Windows Server 2022, 2019, 2016, 2012 R2, 2012, 2008 R2, 2008, 2003, 2000, and NT

Adds eight high-speed RS-232/422/485 serial ports via USB connection
2k bytes transmitter and receiver
Requires no IRQ, DMA, I/O port
RS-232 max bit rates of up to 1 Mbps
RS-422/485 maximum bit rates of up to 10 Mbps
Automatic transmission buffer control for 2-wire RS-485 half-duplex operation
Biasing and terminating resistors installed on board
Supported RS-232 signals: DCD, RxD, TxD, DTR, GND, DSR, RTS, CTS, RI
Supported RS-422 signals: TxD-, TxD+, RxD+, RxD-, GND
Supported RS-485 4-wire signals: TxD-, TxD+, RxD+, RxD-, GND
Supported RS-485 2-wire signals: Data-, Data+, GND
Data Bits: 7/8
Parity: None, Even, Odd, Mark, Space
Stop Bit: 1, 2
Flow Control: Hardware (RTS, CTS), XON/XOFF
Monitor LEDs for TxD, RxD indicating port status
Built-in AC to DC switching power supply, 100VAC to 240VAC
Virtual COM port drivers available for Windows 11, 10, 8.1, 8, 7, Vista, 2003, XP, 2000
Win Server: 2000 up to 2018, Linux, MAC
Industrial quality metal case with DIN bracket for DIN rail mounting

Get a RS485 / RS422 port on the PC via the USB port
Software for choosing a fixed COM port - very useful
Compatible with USB 2.0
12 Mbps USB data rate
921.6 kbps maximum baud rate
Driver for Windows, WinCE, and Linux
Mini DB9 male for terminal block adapter
LED for indication of USB and TxD / RxD activity
15 kV ESD protection for 2 kV optical isolation