Amazon
Two RS-232 high performance UART 16C550 serial outputs Plug and play compatible POS system (power over system) ±5kV IEC1000-4-2 ESD protection for RS232 I/O's PCIe interface compatible with 1.0a - 3.0 specifications
Two RS-232 high performance UART 16C550 serial outputs Plug and play compatible POS system (power over system) ±5kV IEC1000-4-2 ESD protection for RS232 I/O's PCIe interface compatible with 1.0a - 3.0 specifications