Atari ST and Atari 7800 (Secam RGB) Gold RGB Scart Cable.

source: hardwarebook.info ebay coolnovelties.co.uk

Autopsy:

The Atari SM-124 is a high-resolution monochrome monitor designed to be used with the ST series of computers. It is capable of 640×400 resolution at 72Hz in black and white and has a very sharp picture, though the actual viewing area onscreen is quite small, a large black border of about .5 inches or more surrounding the entire screen.

For serious work on the ST, including MIDI sequencing, telecomunications, word processing, etc. the SM-124 is a much nicer monitor than it’s color counterpart

Autopsy:

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The Mega ST was Atari’s first major enhancement to the ST line of computers. With 1MB or 4MB memory (expandable with add-on cards), built in BLITTER graphics chip, and MegaBUS expansion Slot all packaged into a nice clean pizza-box case the ST line of computers received a boost in power, expandability and professional looks.

Atari was moving forward in the right direction. Also introduced along with the Mega ST line was Atari’s direction into the desktop publishing field.

Atari introduced the SLM804 Laser Printer which attached to the Atari DMA interface port and also the desktop publishing package. Also introduced was the Atari Megafile hard drive system to add stackable harddrive modules onto the Mega ST.