DELL KB500 keyboard RF Wireless QWERTY US International Black Memory clock speed___3200 MHz horizontal 178° Maximum refresh rate

DELL KB500 keyboard RF Wireless QWERTY US International Black Memory clock speed___3200 MHz horizontal 178° Maximum refresh rate horizontal 178° Maximum refresh rate 165 Hz Contrast ratio (typical) 3000:1 Screen shape Flat Anti glare screen Yes Response time 5 ms Display brightness (typical) 350 cd m² Panel type VA HD type Quad HD Touchscreen No Display technology LED Native aspect ratio 16:9 Display resolution 2560 x 1440 pixels Display diagonal 80 cm (31 Mouse Bluetooth No Buttons durability (million clicks) 5 Polling rate 250 Hz Frame rate 4000 fps Scrolling directions Vertical Number of scroll wheels 1 Silent click Yes Button functions Forward Multi device support Yes Number of movement resolution modes 3 Customizable movement resolution Yes Recommended usage Universal Mouse tracking speed 28 ips Movement resolution 1600 DPI Scroll Yes Buttons type Pressed buttons Buttons quantity 3 Scroll type Wheel Device interface RF Wireless Purpose Office Design Laser colour Red Product colour Black Form factor Ambidextrous Ergonomics Plug and Play Yes Wireless range 20 m Power Power consumption 15 mA Number of batteries supported 1 Operational conditions Storage temperature (T T) 15 60 °C System requirements Mac operating systems supported Yes Windows operating systems supported Yes Weight & dimensions Receiver weight 1