HP 970 Black Ink Cartridge CN621AA

Looking to buy an HP 970 Black Ink Cartridge in Australia? The HP 970 Black (part number CN621AA) is a genuine HP standard-yield PageWide black ink cartridge for the HP OfficeJet Pro X451, X476, X551, and X576 series, delivering up to 3,000 pages of sharp, professional-quality black text. For higher-volume printing, the HP 970XL Black (CN625AA) delivers 9,200 pages at a significantly lower cost per page.

Compatible HP OfficeJet Pro printers

• HP OfficeJet Pro X451dn
• HP OfficeJet Pro X451dw
• HP OfficeJet Pro X476dn
• HP OfficeJet Pro X476dw
• HP OfficeJet Pro X551dw
• HP OfficeJet Pro X576dw

What the HP 970 Black CN621AA does in your printer

The HP 970 Black is the standard-yield black component of HP's 970/970XL and 971/971XL PageWide ink system for the OfficeJet Pro X-series. It works alongside the HP 971 Cyan (CN622AA), HP 971 Magenta (CN623AA), and HP 971 Yellow (CN624AA) to deliver complete CMYK output across the full range of OfficeJet Pro X-series printers. HP's PageWide technology uses a fixed printhead spanning the full page width, allowing the printer to produce a complete page in a single pass — delivering fast, consistent output for busy workplaces and high-volume office environments.

Why genuine HP 970 ink matters

Genuine HP 970 PageWide cartridges like the CN621AA are engineered specifically for the OfficeJet Pro X-series PageWide printhead. The HP PageWide print mechanism is particularly sensitive to ink formulation — third-party alternatives frequently cause printhead damage, firmware rejection, inconsistent density, and may void your HP printer warranty. The genuine HP 970 Black CN621AA is tested and certified to deliver consistent, sharp black output from the first print to the last page of its 3,000-page yield.

Key features

• Genuine HP 970 Black PageWide Ink Cartridge — part number CN621AA, standard yield
• Up to 3,000 pages* — standard yield for moderate-volume business printing
• HP PageWide technology — full-width printhead for fast, consistent output
• Fast-drying, smudge-resistant HP pigment ink — sharp text on plain paper
• Drop-in installation — no setup required, works immediately in compatible OfficeJet Pro X-series printers
• Genuine HP quality — consistent performance, no firmware conflicts

Also available in the HP 970/971 range

• HP 970XL Black CN625AA
• HP 971XL Cyan CN626AA
• HP 971XL Magenta CN627AA
• HP 971XL Yellow CN628AA

*Approximate page yield based on ISO/IEC 24711 continuous printing standard.

Order the HP 970 Black Ink Cartridge CN621AA today for fast delivery Australia-wide.