# Cartridge Activejet AH-21RX HP 21XL C9351A Black

**URL:** https://aio.lv/en/product--activejet-ah-21rx--1033266
**Data updated:** 2026-03-07 10:57 (EET)
**Category:** Inkjet Printer Cartridges
**Manufacturer:** ActiveJet
**Manufacturer code:** AH-21RX
**EAN:** 5904356286819
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 19.49 €
**Prices and availability valid until:** 2026-07-30 23:59
**Price without VAT (21%):** 16.11 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--activejet-ah-21rx--1033266

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 20.07.2026 | free |
| Pickup points | 23.07.2026 | 1.89 EUR |
| Courier delivery to door | 23.07.2026 | 4.99 EUR |

## Summary description

The Activejet AH-21RX cartridge is a premium replacement for HP 21XL C9351A printers. It features high yield capacity with 20 ml of pigment-based black ink, ensuring sharp and vibrant prints. This single pack cartridge is designed for reliable performance and is ideal for both home and office use.

## Long description

The Activejet AH-21RX HP 21XL C9351A Black cartridge is a compatible, high‑yield replacement designed for printers that accept HP 21XL / C9351A cartridges. It contains 20 ml of pigment‑based black ink formulated to deliver sharp text and consistent print density for office documents, schoolwork and everyday printing tasks. Supplied as a single pack, this cartridge is intended for users who need reliable black prints with a higher page yield than standard cartridges.
Advantages
This compatible cartridge offers high (XL) yield capacity while maintaining accurate black tone and clear text reproduction. The pigment‑based ink improves resistance to smudging on plain paper and supports crisp edges for small fonts. Manufactured using tested components, the cartridge is built to match common paper handling and print quality expectations for home and small‑office environments.
Suitable for
Printing text documents and reports
Everyday home printing and school assignments
Small office and home office (SOHO) document workflows
High‑volume black‑and‑white printing where longer life per cartridge is needed
Key specifications
Type: Compatible replacement cartridge
Ink colour: Black (pigment‑based)
Capacity: High (XL) yield, 20 ml ink volume
Pack: Single cartridge
Brand compatibility: Designed for HP printers that use 21XL / C9351A cartridges
How to use
Remove the cartridge from its packaging and carefully remove any protective tape or seals according to the included instructions. Switch off the printer before replacing the cartridge if recommended by the printer manufacturer, then open the cartridge access panel, remove the empty cartridge and insert the Activejet AH‑21RX in the correct orientation until it clicks into place. Close the access panel and run any printer alignment or nozzle check procedures suggested by the printer to ensure optimal print quality.
Usage recommendations
Store unused cartridges in a dry, cool place away from direct sunlight. For best results use the cartridge within the manufacturer’s suggested timeframe after opening, and follow your printer’s maintenance prompts such as regular nozzle checks and printhead cleaning when print quality declines.

## Specifications

### Features

| Feature | Value |
|---|---|
| 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

| Feature | Value |
|---|---|
| Package type | Box |

### Certificates

| Feature | Value |
|---|---|
| Certification | ISO 9001, ISO 14001, TUV (ISO/IEC 19752, ISO/IEC 19798), CE |

### Other features

| Feature | Value |
|---|---|
| Compatible ink types, supplies | 21XL C9351A |
| Page yield footnote | +30% print more than OEM |
| Technology | Refurbished |
| Version | Premium |
| Class | A+ |

## FAQ

### How much does the Cartridge Activejet AH-21RX HP 21XL C9351A cost, and is it available for purchase?

The price is 19.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 197 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 20.07.2026 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. More information about warranty service: https://aio.lv/en/warranty

### 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 Cartridge Activejet AH-21RX HP 21XL C9351A?

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.

## Image

https://aio.lv/img/cache/product/1033266/62700748_large.webp