Apple Macintosh monitor VGA adapter. This adapter allows you to connect the video output of an old Macintosh to a standard VGA monitor. Supported resolutions are 640x480, 832x624, and 1024x768. It can be used for RGB video output on older models like the Macintosh LC III. Converts the Macintosh DB-15 display port to a PC HD-15 (VGA) port. - Model: ADAPTER 19 - Resolution: 640x480, 1024x768 - Connector Type: VGA, D-sub 15 pin - Application: For display connection 【Please Note!!】Please confirm the following: This item was purchased used and stored for use with an Old Mac from over 15 years ago. The brand is unknown. I cannot confirm that it works as I am unable to test it at this time. One of the screws is slightly bent. There are also minor scratches and dirt due to aging. Please purchase only if you understand the above. Instant purchase is OK. Thank you for viewing.