AppleColor High-Resolution RGB Monitor

The AppleColor High-Resolution RGB Monitor was released by Apple Computer on March 2, 1987 for the first Macintosh II computer. It also supported other models of the Macintosh II series as well as most beige-era Macs without a built-in display. It was discontinued on October 19, 1992 with the introduction of the Apple Macintosh Color Display for the Macintosh IIvx.

Description
The monitor used a Sony Trinitron CRT with a viewable area of 12.8 inches that was capable of displaying 16.7 million colors at a resolution of 640 x 480 at 69 ppi and 66.7 Hz. However, the original Macintosh II Video Card only had enough video memory to display a maximum of 4 or 8-bit color (16 or 256 colors). The monitor is also compatible with the Apple Universal Monitor Stand.

Connector
The monitor included an attached cable with a connector (often misidentified as "DB-15"), a variant of the VGA display connector which was present on many Macintosh systems during the 1990s.

Third party support
RasterOps produced the ColorBoard 264, which was the first video card capable of displaying 24-bit color on this monitor, before Apple produced its own Macintosh Display Card 8•24.

MaxAppleZoom was a 3rd-party control panel that patched Apple's video driver to make it possible to increase the resolution of this monitor to 672 x 512 or 704 x 512 pixels, but only with early NuBus video cards from Apple.