With our SI-PEX15055 2 Port DB9 Serial Card, you are able to provide RS-232 Serial Ports with +5 or +12 VDC Power Output via COM 1st or 9th pin. The Operating Temperature Range: 0 to 70 C or -40 to +85 C. It comes with Low Profile Bracket as well. Intended to be used with applications such as Serial Attached Devices, Serial Networking/Monitoring Equipment, Data Acquisition System, POS Terminal and Industrial PC, Add-On I/O Cards -Serial /USB, and Embedded systems -For I/O expansion.