Philips 4000 series 27B2N4500 00 computer monitor 68.6 cm (27") 2560 x 1440 pixels Quad HD LCD Grey Material___Polyurethane (PU). Thermoplastic polyurethane (TPU) horizontal 178° Maximum refresh rate horizontal 178° Maximum refresh rate 180 Hz Contrast ratio (dynamic) 80000000:1 Contrast ratio (typical) 4000:1 Screen curvature rating 1500R Screen shape Curved Anti glare screen Yes Response time 1 ms Backlight type W LED Panel type VA HD type UltraWide Quad HD Touchscreen No Display technology LED Native aspect ratio 21:9 Display resolution 3440 x 1440 pixels Display diagonal 86 9 mm Certificates Certification Australian New Zealand MEPS 5 cm Haze rate 25% LED backlight Yes Response time measurement type GTG (Gray to Gray) Anti glare screen Yes Audio Built in speaker(s) Yes RMS rated power 4 W Performance Built in speaker(s) Yes RMS rated power 4 W Built in camera No AMD FreeSync No NVIDIA G SYNC No Low Blue Light technology Yes Flicker free technology Yes Management features On Screen Display (OSD) Yes Number of OSD languages 21 Plug and Play Yes Multimedia Number of speakers 2 Built in speaker(s) Yes RMS rated power 4 W Built in camera No Design Market positioning Business Feet colour Silver Product colour Grey Camera Built in camera No Ports & interfaces Built in USB hub Yes USB hub version 3 Key Features