iiyama ProLite H540 21.3"TFT .29 60kHz TCO99blk. Display diagonal: 54.1 cm (21.3"), Response time: 20 ms, Display brightness: 280 cd/m². Audio system: Stereo. VESA mounting interfaces: 100 x 100 mm, Tilt angle: 35°. Power consumption (typical): 74W, Power management: VESA DPMS, ENERGY STAR. Certification: TCO99, Safety: CE, TÜV GS, FCC-B, UL/C-UL, VCCI-B