
51A
Compatible HP 51A Black Toner Cartridge (Q7551A)
6,500 pages
Your LaserJet M3027x MFP takes the 51A (standard yield) and 51X (high yield). At our price that is about 0.4¢ a page.
The HP LaserJet M3027x MFP is a mono laser printer.
It takes two black cartridges that differ only in capacity: the 51A at about 6,500 pages and the 51X at about 13,000. At our prices that is 0.6¢ a page against 0.4¢, 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.

51A
6,500 pages

51X
13,000 pages
| Cartridge | Yield | Price | Per page |
|---|---|---|---|
| 51A | 6,500 pages | $39.99 | 0.6¢ |
| 51X High yield | 13,000 pages | $48.99 | 0.4¢ |
About $9.66 a month in toner, roughly one 51X every 3 months.
The 51A and 51X. HP lists these cartridges as compatible with this model, and the yields on this page are HP's published figures.
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.