Exsys USB 2..0 to 1S Serial RS-232 TTL/CMOS with 1.8 meter cable (FTDI chip set)

The USB 2.0 to RS-232 cable with A connector provides a powerful 16C550-compatible UART RS-232 TTL/CMOS serial port. It is designed for PCs, thin clients, or servers to provide immediate COM port expansion over the USB 1.1 to 3.2 Gen 1 bus. The EX-1310-TTL offers a USB to RS-232 port with 5V, 3.3V, 2.5V, and 1.8V TTL/CMOS compatible logic levels. With easy installation, you do not need to open the computer system to install the EX-1310-TTL while the system is running.

Interface: RS-232 V.24 and TTL/CMOS
FIFO buffer: 16C550 with 16 bytes
Logic levels: 5V, 3.3V, 2.5V, 1.8V (set with a DIP switch)
Data bits: 7 and 8 / Stop bits: 1, 2 / Parity: none, even, odd, space, mark
RS-232 signals: TxD, RxD, GND
Power supply: from the USB bus (bus power)
Chipset: FTDI.