Pwr Hexa LCD Monitor Stand Desk Clamp Holds Up to 6 21" LCD Monitors Simplify your multitasking and improve productivity with expanded workspace and high ergonomic comfort Meets VESA standards: fits monitors with 75 x 75 mm and 100 x 100 mm mounting patterns Arms have 360 swivel and rotation and -15 to +15 tilt adjustment / Easy installation with integrated cable management system No need to contact manufacturer - Pwr+ provides warranty and customer oriented product support: 30 Days Money Back Guarantee / 18 Months - Exchange and Spare Parts / Please contact us with any questions or concerns - we are here to help! (Phone service is available) This product has been tested and validated to ensure it will work with Monitors 13-21" and is compatible with all major brands: LCD TV Plasma DLP LED Monitor Screen, Samsung, Toshiba, Vizio, Sharp, Sony, Sceptre, RCA, Panasonic, Philips, Magnavox, Acer, Asus, Apple, HP, Samsung, ViewSonic, Dell, Compaq, Hanns-G, LG, Planar, Monitor, Mount-it Vivo Tyke-Supply