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Two rectangular ink cartridges in black and multicolour plastic casings, new in sealed packaging

SpeedyInks

SpeedyInks HP 45 & 78 Replacement Ink Cartridges 2-Pack 710 Pages

SKU CH-HPTF-DG4S5

A two-pack with one black and one tri-colour cartridge yielding 710 pages for DeskJet, PhotoSmart and OfficeJet printers

  • Cartridges included2 Pack
  • Ink or toner colorMulti-Color
  • Ink or cartridge typeDye-based
  • Estimated page yield710 Pages
  • Two-cartridge pack covers black and colour printing
  • Dye-based ink works with HP 45 and 78 models
  • ISO-tested yield of 710 pages at 5 % coverage
  • Compatible with DeskJet, PhotoSmart, OfficeJet and Fax series
  • Remanufactured cartridges replace originals 51645A and C6578DN

Two-Cartridge Pack for Legacy HP Printers

This pack supplies one black cartridge replacing HP 45 and one tri-colour cartridge replacing HP 78. It is intended for owners of the listed DeskJet, OfficeJet, PhotoSmart and Fax models who need both colours in a single purchase.

Dye-Based Ink Yield Measured at ISO 5 % Coverage

The quoted 710 pages follow the ISO/IEC standard at 5 % page coverage. Real-world output will fall when printing photos, graphics or dense text because dye-based ink saturates the page more heavily than the test pattern assumes.

Remanufactured Replacements Not Suited for Newer

These cartridges are built for the older printer series shown in the compatibility list. Buyers with current-generation HP inkjets or printers requiring proprietary chip authentication will find they do not fit or are not recognised.

How it compares

Measured against everything we stock in OEM Ink Cartridges, at today’s prices. Recalculated every night.

Price $31.99
Cheaper than about 70% of the 1,504 comparable items (median $60.99).

Specifications

Product
Brand nameSPEEDYINKS
Ink or toner colorMulti-Color
Performance
Estimated page yield710 Pages
In the box
Cartridges included2 Pack
More details
Ink or cartridge typeDye-based

Questions about this item

Should I pick the 45 black or the 78 colour cartridge first?

The pack contains one of each — HP 45 black and HP 78 tricolour — so you install both together.

What does the 710-page yield mean for everyday printing?

It is measured at 5 % coverage under ISO/IEC test conditions; typical mixed documents will give fewer pages.

Which printer interface do these cartridges use?

They fit the listed DeskJet, OfficeJet, PhotoSmart and Fax models that accept HP 45 or HP 78 cartridges.

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