HP 508X High Yield Black Original LaserJet Toner Cartridge Travel Accessories Independently tested by 3rd party

Independently tested by 3rd party lab to block 47% of blue light in the 380-450 nm range

4 Alternative Mode

you can even send a colour fax right from your computer

Lexmark MS431dw

HP 508X High Yield Black Original LaserJet Toner Cartridge Travel Accessories Independently tested by 3rd party508X High Yield Black Original LaserJet Toner CartridgeKey Features Original HP 508X High Yield Toner Cartridges deliver legendary HP print quality. HP 508 toner cartridges work with: HP LaserJet Enterprise M552, M553, M577; HP LaserJet Flow M577; HP LaserJet M553 1 Black (~12,500 pages) Print high quality black text and brilliant graphics with Original HP Supplies designed for reliability. Reliable printing you can trust Count on affordable HP