v4ink2PK CE255X Toner Cartridge Compatible Replacement for HP 55A 55X CE255X Toner High Yield Black Ink for HP Pro P3015 P3015d P3015dn P3015n P3015x M521dn M521dw M525c M525dn M525f Printer

I haven't had a chance to see how long they last but I know they fit and work in my HP M521dn printer. At less than 1/2 the cost of OEM they should be a great value.

Worked as stated in the description. We haven't had any issues with their products.

Works great. Clean print and no ghosting.

The description of product was perfect for my printer and worked perfectly.

All of the VF4ink toners we buy - they are our exclusive provider - are well priced, and they work. There might be cheaper ones, but I have stopped trying them because there are frequently issues. Good quality, longevity, and coverage. Will buy again.

I purchased the 2-pack, and the box even says 2 pack, but the box is only large enough for 1 printer cartridge and only contained 1 printer cartridge. This is a scam, do NOT buy the 2 pack

Way cheaper than a official cartridge. Works great in the office.

Works as good as the name brands, for a lot less!