HP 55A vs 55X: same black LaserJet toner for the same printers. The difference is page yield (and cost per page).
55A (CE255A) is the standard-yield black — about 6,000 pages. Buy this when you print lightly.
55X (CE255X) is the high-yield black — about 12,500 pages. Same fit. Fewer swaps. Better cost per page if the printer runs often.
| Feature | 55A | 55X |
|---|---|---|
| Black yield | ~6,000 (CE255A) | ~12,500 (CE255X) |
| Best for | Light / occasional | Regular office use |
| Printers | LaserJet Enterprise P3015d/dn/n/x; Enterprise 500 MFP M525dn/f; Flow MFP M525c; Pro MFP M521dn | |
Mono black only — there is no 55 color pack. Not 80A/80X or 53A/53X. Read the label on the cartridge already in the printer.
We sell a compatible 55A black (CE255A) and a compatible 55X high-yield black (CE255X), chips installed.
When to buy which: replace toner more than a couple of times a year → start with 55X (about 2× the pages for roughly the same cartridge price). Occasional printing → 55A is enough. If the label says 55X, stay on X unless you intentionally want fewer pages per cartridge.
FAQ
Are 55A and 55X for the same printers?
Yes. Same P3015 / M525 / M521 family. Only the yield changes.
Is there a 55 4-pack?
No. These are single black cartridges only.
Does compatible toner void the printer warranty?
Using a non-HP cartridge does not by itself void HP’s limited printer warranty. Damage HP attributes to a non-HP cartridge is a different question.
HP+ / Instant Ink?
Those programs do not accept compatible toner. If you are not sure the printer was never enrolled, ask before you order.
Ready to order: compatible HP 55A or compatible HP 55X.