Adapter Compatibility: Double check your monitor's model before ordering! The patented bracket is designed to fit only the following Dell models: S2218H, S2318HX, S2318HN, S2318NC, S2318NX, S2319H, S2319HN, S2319NX, S2418HX, S2418HN, S2418NX, S2419HN More Compatible Models: S2419H (doesn't fit S2419HGF or S2419HM), S2419HR, S2419NC, S2419NX, S2718HX (Does not fit S2718D), S2718HN, S2718NX, S2719H (doesn't fit S2719DM), S2719HN, SE2219, SE2419H, SE2419HR, SE2419HX, SE2719, SE2719HR