Sealevel Systems, Inc. DB9 Female to DB9 Male – Serial Surge Suppressor SS-DB9

Protect your serial devices from damaging transients and surges with the SS-DB9. User configurable for use with male or female DB9 ports, the SS-DB9 protects all 9 lines, plus D shell chassis. Convenient DB9 input and output connects directly to the protected port, obtaining a ground outlet from the computer chassis. Surge suppression is handled with balanced arrays of high-speed avalanche diodes that divert excess energies created by electrostatic discharges, faulty wiring or lightning away from network interface connections.