IBM AT SERIAL ADAPTER BLOCK F/M KEY SELLING BULLETS CONVERTS THE IBM AT DB9 MALE SERIAL PORT TO A DB25 MALE PORT ALLOWS THE USE OF IBM PC SERIAL PRINTER AND MODERN CABLES TO INTERFACE WITH THE AT DB9 MALE SERIAL PORT Technical Specifications: SYSTEM AND OTHER REQUIREMENTS IBM PC AND IBM AT COMPUTER AND COMPATIBLES PRODUCT DIMENSIONS AND WARRANTY INFORMATION PRODUCT PHYSICAL DIMENSIONS LENGTH: 6 WIDTH/DEPTH: 3 HEIGHT: 1 WEIGHT: .14 WARRANTY STANDARD WARRANTY: LIFETIME BILL OF MATERIALS IBM AT SERIAL ADAPTER BLOCK F/M POP RETAIL PACKAGING