Dell S2421HS Adjustable Height Monitor Stand Base 10" to 14" (top of stand) | eBay
Amazon.com: Dell P2719H 27-inch Full HD Height Adjustable Thin Bezel Monitor for PC, Laptop - 1920 x 1080p at 60Hz, 5ms (Fast) Gray-to-Gray Response Time, 16.7 Million Colors, Displayport, HDMI, USB -
Amazon.com: Dell Professional P2314H 23-inch Widescreen Flat Panel Monitor with LED w/Built-in USB 2.0 HUB & Height Adjustable Stand, Tilt & Swivel, Stand. : Electronics