We just got in several dozen 27" monitors from a company, all in working order, as they were moving, and got all new equipment at the new location.
All will include power cable, HDMI cable, stand, keyboard, and mouse if you need any of those items.
Some dual monitor arms are available at an extra cost.
Quantity pricing available for quantities of 10, 25, and 50+ monitors.
Trade-ins allowed for working monitors, from $5 to $15, all of the trade-ins will eventually be exported to third world countries in support of educational projects there