DELL Alienware AW2521HFL 63.5 cm (25") LED Gaming Monitor Full HD (1920x1080) at 240 Hz (1ms Response Time) AMD Free-Sync Support & NVIDIA G-SYNC : Amazon.co.uk: Computers & Accessories
Alienware AW2518HF 24.5 Inch TN Gaming Monitor (Black Grey) (1 ms Response Time, Full HD 1920 x 1080 at 240 Hz, AMD Free-Sync, DP/HDMI, USB) : Amazon.co.uk: Computers & Accessories
Alienware 25" Monitor AW2518HF - Digi-Me-Bobs
Alienware 25 Gaming Monitor- AW2521HFL | Dell India
Dell's latest monitors include the 240Hz Alienware 25 | Engadget