55A
Compatible HP 55A Black Toner Cartridge (CE255A)
6,000 pages
$36.99
Save 83% vs genuine
HP LaserJet PRO M521dw MFP toner
Your LaserJet PRO M521dw MFP takes the 55A (standard yield) and 55X (high yield). At our price that is about 0.3¢ a page.
The HP LaserJet PRO M521dw MFP is a mono laser printer.
It takes two black cartridges that differ only in capacity: the 55A at about 6,000 pages and the 55X at about 12,500. At our prices that is 0.6¢ a page against 0.3¢, so the high-yield cartridge costs less to run unless you print very little.
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
55X
Compatible HP 55X Black High Yield Toner Cartridge (CE255X)
12,500 pages
$39.99
Save 75% vs genuine
Which yield is worth it
| Cartridge | Yield | Price | Per page |
|---|---|---|---|
| 55A | 6,000 pages | $36.99 | 0.6¢ |
| 55X High yield | 12,500 pages | $39.99 | 0.3¢ |
What it costs you a month
About $9.66 a month in toner, roughly one 55X every 3 months.
Questions about the LaserJet PRO M521dw MFP
What toner does the HP LaserJet PRO M521dw MFP use?
The 55A and 55X. 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 LaserJet PRO M521dw MFP 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.
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Page updated Sep 22, 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.