Tripp Lite Network In-Line Dataline Surge Protector 120V / 230V 9-PIN DB9 SKU# DB9 MFR# DB9 $16.95 Quantity discounts available QuantityPrice Complete serial port (DB9) surge protection Protects against the effects of electrostatic discharge, faulty wiring and lightning Ship Pickup in Store - FREE! Select Store to check availability. Quantity -+ Add to Cart Have questions? 800-531-5369OverviewFeaturesSpecificationsDocumentsBackBackBackBackRatings & Reviews