USB to 2 x RS232 adapter. Two COM ports via the USB port

USB-32COM-RM - 32-Port RS-232 USB-to-Serial Adapter, Metal Case, Rack-Mountable.

• High speed
• 128 byte transmit FIFO & 384 byte receive FIFO
• Serial port protected with surge protection of 10KV
• Built-in switching power supply of 100V~240V
• Standard 19-inch, 1U rackmount chassis

USB 2.0 to RS232 / Serial / DB9 adapter cable
Supports USB2.0 / 1.1 and 1.0
Prolific Chipset
8.7
bit OS Support WIN XP / 2000/98/7 / 10.8, linux and Mac
60 cm cable

Get a COM port on the PC via the USB port
USB to RS232 7 or 8 bit
RS232 signals: DCD, RxD, TxD, DTR, GND, DSR, RTS, CTS, RI
Up to 921.6 kbit/s - FTDI chip
DB9 male

USB 2.0 to 4 x RS232/422/485
High-Speed serial ports 921.6kbps
Driver for Windows, Linux, Mac OS X
LEDs for Power and TxD/RxD activity
ESD protection on USB and serial ports
2.5kV electrical isolation (ISO version only)
Bus powered (non-ISO), Self powered (ISO version)
Wide range of power input 9 - 54V DC
Metal housing
19-inch rack and wall mounts
Wide range of operating temperatures