55A MICR
Compatible HP 55A MICR Black Toner Cartridge (CE255A)
6,000 pages
$99.98
HP Pro M521dw toner
Your Pro M521dw takes the 55A MICR (standard yield) and 55X Jumbo (super yield). At our price that is about 0.5¢ a page.
The HP Pro M521dw is a mono laser printer in the Pro M521 series, which shares cartridges across 2 models.
It takes 2 cartridges: the 55A MICR and 55X Jumbo.
On this printer the drum is built into the cartridge, so there is no separate drum to buy or reset. Every new cartridge brings a fresh drum with it.
When you compare prices, compare cost per page rather than the sticker price: a cheaper cartridge with half the rated yield costs more to run. Every cartridge here ships free, is covered by our printer damage protection and can be returned within 90 days, opened or not.
Cartridges that fit
Which yield is worth it
| Cartridge | Yield | Price | Per page |
|---|---|---|---|
| 55A MICR | 6,000 pages | $99.98 | 1.7¢ |
| 55X Jumbo | 15,000 pages | $79.71 | 0.5¢ |
What it costs you a month
About $9.66 a month in toner, roughly one 55X Jumbo every 3 months.
Questions about the Pro M521dw
What toner does the HP Pro M521dw use?
The 55A MICR and 55X Jumbo. HP lists these cartridges as compatible with this model, and the yields on this page are HP's published figures.
Does using a compatible cartridge void the Pro M521dw warranty?
No. Under the Magnuson-Moss Warranty Act a manufacturer cannot void your warranty because you used a third-party cartridge. If one of ours damages the printer, our printer damage protection covers the repair.
Other HP Pro M521 models
Most of these share the same cartridges. Check the model page to be sure.
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Page updated Sep 23, 2026. Compatibility checked by Dan Whitaker, Print Technician. Brand names and part numbers are used only to identify compatibility. We are not affiliated with or endorsed by any printer manufacturer.