Black Box Serial Null Modem Cable - EYN257T-0010-MFKey Features Crosses Pins 2 and 3 for RS-232 standards compliance. Gray PVC jacket with metal (EMI/RFI) hoods. Guaranteed for life! Has 115-ohm nominal impedance at 1 MHz or above. Ideal for AT-to-AT file transfers. Product OverviewNeed to transfer files between your AT computers? Just attach this cable between your AT serial ports and you're ready to transfer data. General Information Manufacturer: Black Box Corporation Manufacturer Part Number: EYN257T-0010-MF Brand Name: Black Box Product Name: RS232 Shielded Null Modem Cable - Metal Hood, DB9 Male/Female, 10-ft. (3.0-m) Packaged Quantity: 1 Product Type: Data Transfer Cable Technical Information Cable Type: Serial Cable Length: 10 ft Connector Type on First End: DB-9 RS-232 Serial - Male Connector on First End Details: 1 x DB-9 RS-232 Serial - Male Connector Type on Second End: DB-9 RS-232 Serial - Female Connector on Second End Details: 1 x DB-9 RS-232 Serial - Female Shielding: Yes Features: EMI/RF Protection Physical Characteristics Product Color: Beige Jacket Material: Polyvinyl Chloride (PVC) Miscellaneous Environmentally Friendly: Yes Environmental Compliance: Waste Electrical and Electronic Equipment Directive (WEEE) Restriction of Hazardous Substances (RoHS) Country of Origin: China Warranty Limited Warranty: Lifetime