HD15 Male to a DB9 (video) Female connectors. Used for most Multi-Sync Styled DB9 (video) output port to a VGA HD15 input port. | *PLEASE make sure the DB9 port on the device is a MultiSync DB9 style video output port. DOES NOT Convert Serial DB9 RS-232 Data Port to VGA Video Signal. Connect Multi-Sync DB9 Video to HD15 VGA Video. Please also check picture of the wiring diagram. | PLEASE make sure signal from both end of the connected device are the same type of signal for the adapter to work properly. Please also check picture for wiring diagram before purchase. | Molded Type Adapter. Fully shielded to reduce noise interference. Standards: UL, CSA, ISO 9001:2000 manufacturer | Each order Contains 1 Piece. Picture demonstrated adapter's front and back connection.