

Sunix ipc-E2204S with Surge protection - standard
Sunix ipc-E2204S with Surge protection - standard + Low-profile dual bracket - 4 port RS422/485 high-speed serial , pci-e card , 128byte hardware + 128k software FiF, 921.6Kbps , 15KV ESD protection + 15KV IEC1000-4-2 Air Gap Discharge + 8KV IEC1000-4-2 Contact Discharge + 2KV surge protection , SUN2212 chipset