The SGI 1600SW (part #AM173Y01) uses an OpenLDI video connector, not compatible with any modern video card. However it is possible to purchase an adapter. Four such adapters were produced: the SGI Multilink Adapter, Dr. Bott SGI-Saver, PIXsolution PIX-Link 1600SW, and the GFX-1600SW. The first three are discontinued, but can frequently be found on eBay, along with replacement power supplies. Note that the original SGI power supplies tend to fail after about ten years (it's been that long).

The 1600SW monitor's native resolution is 1600x1024 pixels, which is supported by most but not all modern video cards.  Screen distortion can occur at other resolutions (most notably during safe mode on PC's, and for certain games that take over the display)  All Macintosh OS X machines are fine with 1600x1024 right from bootup.  Wikipedia has more information on the history of this groundbreaking monitor, which is still competitive with displays manufactured a decade later.

You can pick up one of these monitors very inexpensively, if you're willing to go through a little bit of work to adapt it a modern computer.