Manhattan Universal Four Monitor Mount with Double-Link Swing Arms – Holds Four 13″ to 32″ LCD Monitors up to 8 kg (17 lbs.), Black, Retail Box, Limited Lifetime Warranty

Manhattan Dual LCD Monitor Mount Bracket-Supports Two monitors, Double-Link Swing Arms,Fits Two LCD monitors up to 19 inch and 6kg each(12kg total), Retail Box , 1 year Limited Warranty