| MRi High Speed USB to 4 Port Serial Hub with 5V P.Supply (DB9) (MRI-4S/USB/R) |
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| The MRI-4S/USB/IS/R is a high-speed four port serial adapter with Isolation and Surge Protection Provides 4 Serial Ports over USB Port Isolated and 15KV ESD Surge Protection Optional DC 5V over DB9-Male Connector DC Jack for Optional DC 5V Power Input Fully 16C550 UART Compatible Includes Wall Bracket |