Best Power Cord For Video Projector

Basic MIT Oracle ,non networked pc is good;found used from $500 to $600 right here. 

The power cord is not that important to me. I am using the power cord that comes with the portable projector.

The one it came with. Unless you live next to a radio tower, the EMI rejection from some quad-shielded power cords will not benefit you (it also of course won’t make the picture better, reduce heat output, etc.)

While more expensive ones work better (tried it with other silver power cables when moving around some stuff) I use Cabledyne's Synergy for my broadcast monitor. 12 awg, 99.99% silver, solid core wiring, Teflon dielectric, good shielding, very flexible and not obtrusive, plugs have a good grip on them. They are $175.00 per meter, but often go on sale (were around $80 around Thanksgiving at one point, then later $90 for 1.5 meters).
Silver even when used with power cables for whatever reason brighten the image and help with detail/resolution. Seems absurd, but it does; why, I have no idea.You may want to check with companies that have a trial period though, don't spend the money if it doesn't make enough of a difference to you.