{{ totalProductsCount }}
In cart {{totalProductsCount}} item(s)

In cart {{totalProductsCount}} item(s)

Total:
{{sum | formatAmount}}

Your cart is empty

header-product Compatible ink cartridge ActiveJet AH-21RX (replacement for HP 21XL C9351A) — Black, 20 ml, High (XL) yield
10.99 €
Minimum search length 3 characters
{{searchQuery.text}}
{{shortcut.title}}
{{searchString}} → {{searchInCategorySuggest.title}}
{{category.title}}
{{category.path}}
AiO.lv Office Equipment Cartridges & Refills Inkjet Printer Cartridges ActiveJet

Compatible ink cartridge ActiveJet AH-21RX (replacement for HP 21XL C9351A) — Black, 20 ml, High (XL) yield

ActiveJet AH-21RX compatible ink cartridge — HP 21XL replacement Photo 1
ActiveJet AH-21RX compatible ink cartridge — HP 21XL replacement Photo 2
ActiveJet AH-21RX compatible ink cartridge — HP 21XL replacement Photo 1
ActiveJet AH-21RX compatible ink cartridge — HP 21XL replacement Photo 2
ActiveJet AH-21RX compatible ink cartridge — HP 21XL replacement Photo 1
ActiveJet AH-21RX compatible ink cartridge — HP 21XL replacement Photo 2
ActiveJet AH-21RX compatible ink cartridge — HP 21XL replacement Photo 1
ActiveJet AH-21RX compatible ink cartridge — HP 21XL replacement Photo 2
Compatible ink cartridge ActiveJet AH-21RX (replacement for HP 21XL C9351A) — Black, 20 ml, High (XL) yield
10.99 €
Keep track of price changes You keep track of price changes
Watch the price drop

Leave your address - as soon as the price of the product goes down, you'll know about it right away

You keep track of price changes

Compatible ink cartridge ActiveJet AH-21RX (replacement for HP 21XL C9351A) — Black, 20 ml, High (XL) yield

{{email}}
You keep track of price changes

Compatible ink cartridge ActiveJet AH-21RX (replacement for HP 21XL C9351A) — Black, 20 ml, High (XL) yield

{{email}}
{{selectedOffer && selectedOffer.price | formatAmount}}

Short description

Compatible ActiveJet AH-21RX black ink cartridge is a refurbished, premium replacement for HP 21XL C9351A. It contains 20 ml pigment-based black ink with high (XL) yield and comes single-packed in a box. Designed for inkjet printers compatible with HP 21XL, it offers about 30% more prints than the OEM and is suitable for everyday document printing. Dispose following local hazardous waste rules.
Available at price 10.99 €: 200 pcs.
Total available for order: 230 pcs.
Warranty: 5 Years
SKU: 4575952
Manufacturer: ActiveJet
Learn more
free shipment

Cheapest delivery:

Venipak Pickup LV, Venipak Locker LV

Pick-up points

Venipak Pickup LV

Venipak Locker LV

Cost

1.89 €

Deliver

{{selectedOffer.parcelStationDeliveryString}}

All delivery methods Hide details
Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
Monday {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
16.07.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 0.08 kg)
Parcel couriers
Venipak Pickup LV / Venipak Locker LV / Latvijas Pasts pakomāts / Unisend LV / DPD Paku skapis / Omniva LV / Latvijas Pasts nodaļa
16.07.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.89 €
More about delivery methods
payment
Payment Methods:
Bank transfer, Bank cards on-line, Apple Pay, Google Pay
More about payment methods
Together cheaper
{{product.price | formatAmount}}
{{product.title}}
{{productBundle.reference.specialPrice | formatAmount}}
{{productBundle.title}}
{{productBundlePreviousPrice | formatAmount}}
{{productBundleSpecialPrice | formatAmount}}

You saving {{productBundleYouSave | formatAmount}}

Product information

Description

The Activejet AH-21RX ink cartridge is a compatible replacement for the HP 21XL C9351A black cartridge. It contains 20 ml of high-quality black ink and is designed for easy installation and reliable performance in compatible HP printers. The cartridge is offered in Activejet's product range that includes Premium (refurbished components) and Supreme (new components) variants, and its manufacture follows quality checks monitored by external auditors.

Advantages

Activejet AH-21RX provides higher ink volume than many original cartridges while maintaining accurate black tones and sharp text. Many components and printing heads in the Activejet range are made from European parts. The cartridge is tested during production and audited by independent organisations such as TUV Rheinland and BSI.

Suitable for

  • Home printing of documents and black-and-white materials
  • Small office use with moderate to high black text output
  • Replacement for HP 21XL / C9351A cartridges

Key specifications

  • Brand: ActiveJet
  • Model: AH-21RX (MPN: CQIACJH21R)
  • Compatible with: HP (replacement for HP 21XL C9351A)
  • Printing colour: Black
  • Cartridge capacity: High (XL) Yield
  • Ink volume: 20 ml
  • EAN: 5904356286819

How to use

Remove the empty HP 21XL/C9351A cartridge according to your printer's manual, unpackage the Activejet AH-21RX cartridge and remove any protective tape or cap before installation. Insert the cartridge into the designated slot until it clicks into place, then run a printer alignment or nozzle check if required. Follow any on-screen prompts from the printer to complete installation.

Usage recommendations

Store the cartridge upright in a cool, dry place away from direct sunlight. Use within the manufacturer's recommended period after opening for best print quality. If printing quality decreases, run printer head cleaning and alignment routines before replacing the cartridge.

Specifications

Type:
Compatible
Cartridge capacity:
High (XL) Yield
Brand compatibility:
HP
Printing colours:
Black
All features

Features

Type:
Compatible
Print technology:
Inkjet printing
Compatibility:
HP Deskjet: F300, F310, F325, F335, F340, F350, F370, F375, F379, F380, F390, D1311, D1320, D1330, D1341, D1360, D1400, D1420, D1430, D1445, D1455, D1460, D1468, D1470, D1500, F2100, F2110, F2120, F2128, F2140, F2180, F2187, F2188, D2300, D2320, D2330, D2345, D2360, D2400, D2430, D2445, D2460, 3910, 3915, 3918, 3920, 3930, 3930v, 3940, 3940v, F4100, F4135, F4140, F4172, F4180, F4185, D1560, D1568, F2200, F2210, F2240, F2250, F2280, F2290. HP Officejet: 4300, 4311, 4314, 4315, 4315v, 4315xi, 4350, 4355, J3600, J3680. HP PSC: 1400, 1401, 1402, 1406, 1408, 1410, 1410v, 1410xi, 1417. HP Fax: 1250.
Printing colours:
Black
Cartridge capacity:
High (XL) Yield
Replacement for:
HP
Brand compatibility:
HP
OEM code:
HP 21XL C9351A
Quantity per pack:
1 pc(s)
Ink type:
Pigment-based ink
Black ink volume:
20 ml
Black ink cartridges quantity:
1
Supply type:
Single pack
Black ink type:
Pigment-based ink

Weight & dimensions

Package type:
Box

Certificates

Certification:
ISO 9001, ISO 14001, TUV (ISO/IEC 19752, ISO/IEC 19798), CE

Other features

Compatible ink types, supplies:
21XL C9351A
Page yield footnote:
+30% print more than OEM
Technology:
Refurbished
Version:
Premium
Class:
A+
Hide Show all

Instructions

mmo_20391426_1543318794_573_4834.pdf

Description

Instructions

mmo_20391426_1543318794_573_4834.pdf
Machine translation. Load original

Similar products

{{product.title}} Show details Hide details

{{highlightedFeature.featureTitle}}:

{{getProductFeatureValueById(product, highlightedFeature.featureId)}}

{{product.price | formatAmount}}
Might be useful
{{product.manufacturerName}}
{{product.categoryName}}
{{product.title}}
{{product.specialPrice}}
{{product.price}}
Stock data
Warehouse Stock Delivery to the store Store Price
EU2 200 Monday Best delivery 10.99 € Best price
WH353 30 24.07.2026 19.49 €
10.99 €
Stock: 200
Delivery Date: Monday Best delivery
Warehouse: EU2
19.49 €
Stock: 30
Delivery Date: 24.07.2026
Warehouse: WH353

Customer reviews

Show all reviews

Customer questions

FAQ

How much does the ActiveJet AH-21RX compatible ink cartridge — HP 21XL replacement cost, and is it available for purchase?

The price is 10.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 230 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on Monday at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

What is the warranty period?

All ActiveJet products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized ActiveJet service centers and through AiO.lv

Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: type, cartridge capacity, brand compatibility, printing colours, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

Where can I download the instructions for ActiveJet AH-21RX compatible ink cartridge — HP 21XL replacement?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.
Show all questions
{{totalProductsWishes}} {{totalProductsCompare}} {{totalProductsCount}}
We respect your privacy
We use cookies to ensure the full operation of our store. The information associated with cookies is not used to personally identify you, and the files themselves are stored on your device, under your control. Cookies are not used for purposes other than those stated in our Privacy policy. By continuing to use our site, you agree to the use of essential cookies. If you do not agree, please, leave this site.
We use cookies
Show info
We respect your privacy
We use cookies to ensure the full operation of our store. The information associated with cookies is not used to personally identify you, and the files themselves are stored on your device, under your control. Cookies are not used for purposes other than those stated in our Privacy policy. By continuing to use our site, you agree to the use of essential cookies. If you do not agree, please, leave this site.
Which cookie files we use?

The necessary technical cookies allow you to use the basic functions of the store, such as page navigation, ordering, access to secure sites and more. The site cannot function properly without these files.

Preferences cookies are used to save information that changes how the site works and looks.

Static cookies are used in order to help the sites owner understand how the users are interacting with the site.

Marketing cookies are used in order to track a users movements throughout the site in order to show interesting and relevant ads to the specific user.
warranty
14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
shipping
Fast Delivery Get your orders as quickly as possible — right to your door, parcel lockers, or pickup points across Latvia and the EU.
payment
Secure Payment Pay the way you prefer: cash, VISA, MasterCard, Apple Pay, Google Pay, bank transfer, or 0% installment plan.
warranty
Quality Since 2008 AiO.lv has been on the market for over 18 years and has earned trust — with more than 6000 genuine positive reviews on Google.