Ink2U, Ink Cartridges & Toner Supplier

Delivery Info
FREE delivery by Tuesday, 26th

HP 21XL High Capacity Black Ink Cartridge (C9351CE)

From Only
& Free Delivery

31.81 inc VAT
31.26 inc VAT
31.04 inc VAT

Average Customer Rating: Average Customer Rating of 4.38461538462 Stars  4.4/5  (from 13 reviews)
13 out of 13 people would recommend this product to a friend
In Stock & Ready to Ship

Order now for delivery Tuesday, 26th

SAVE 15.01 & 67% More Ink

A premium value alternative is available, containing 8ml of extra ink, that's 67% more.

View the product for 11.50

Product Code

Cartridge Colour
High Capacity Black   High Capacity Black


Cartridge Type
Original Inkjet Cartridge

HP 21, HP 21XL, C9351AE, C9351CE, Ink 21, Ink 21XL


Duty Cycle
475 pages

Running Cost
5.6p per page


HP 21XL High Yield Black Original Ink Cartridges are designed to print in higher-volumes with fewer cartridge changes. Print more rich, laser-quality black text and save money too.

HP 21XL 100% Money Back Guarantee

Here at Ink2U We Do Our Best to Keep Our Customers Happy

Our mission is to provide quality, low priced products, delivered free of charge that are coupled with excellent customer service before, during and after your purchase.

If it turns out that you are not completely satisfied with this HP 21XL High Capacity Black Ink Cartridge for example, it's extremely easy for you to get your money back as it's covered by our 6-month money back guarantee.

If you need to, just get in touch and we'll be more than happy to get you smiling again :)

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These cartridges earn you 00p each off of your next order

What do I do?

When you receive your order, simply return your empties in the provided Freepost envelope and we'll credit your account with cash, which will automatically be deducted off of your next order. We'll even send you a courtesy email to let you know your money is applied.

  • Saves you extra money off of your orders
  • Saves waste going to landfill

Customer Ratings and Reviews

HP 21XLHP 21XL High Capacity Black Ink Cartridge
Average Customer Rating of 4.4 Stars 4.4/5  from 13 reviews

Customer Rating of 4 Stars Good old ink2u!! 27/04/2016 by Peter Glenn

outstanding servie as usual.

Customer Rating of 5 Stars It's good to be back. 23/01/2016 by Peter Glenn

I was a long-standing customer before i went to work in Africa. I was away for 6 years and when I returned and set up home here again I needed a print cartridge. Luckily I remembered Ink2U and nothing had changed! Brilliant quick service AND I still had credit in my account! It's good to be back!

Customer Rating of 4 Stars Excellent, efficient service! 01/10/2015 by Ursula Smith

Expensive but reliable! Service excellent-absolutely reliable and very quick!

Customer Rating of 5 Stars Great service 31/07/2015 by rod dixon

Good price and super service. Ordered in afternoon here next morning.

Customer Rating of 5 Stars Report on 2!XL and service 11/05/2015 by John Page

The product is exactly right for our printer. The service is immaculate and very quick, even to this fairly remote spot. J P A Page

Customer Rating of 3 Stars Cheaper original product 03/05/2015 by Saviour John Galea

I bought this product since the re-manufactured product did not work on my particular printer. However I do not regret my decision to buy this product as it is an original and yet cheaper that other sources.

Customer Rating of 4 Stars Black ink! 20/01/2015 by Ursula Smith

Very good product- rather expensive!

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Customer Rating of 5 Stars Black ink 20/05/2013 by Ursula Smith

Ink2U service is excellent. The cartridge is excellent but expensive and compatible ones don't work with my printer!

Customer Rating of 3 Stars Cheaper ink please! 20/03/2013 by Ursula Smith

No problems with ink or cartridge but wish HP printers would work consistently with supposedly compatible cartridges! HP cartridges are just too exensive!

Customer Rating of 5 Stars My purchases from ink2u 13/02/2013 by Victoria Pace Ross

I am very satisfied with the service. However when I bought remanufactured cartridges, these were mostly either leaking or did not print well. I might need to buy in bulk, about 18 cartridges at a time. Do I get a special price for these?

Customer Rating of 4 Stars Easy 23/12/2012 by Mr M. R Ottaway

Good service and delivery soon after. No hassle & no problems.

Customer Rating of 5 Stars Hoping it will last longer 12/12/2012 by Pamela Woodland

Difficult to write a review at present as I have not used the XL products before. I am hoping it will last considerably longer than the usual ones.

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