The 21 Black Replacement Ink Cartridge for HP Printers (5 Black) costs $0.6421/GB while the Brother - Genuine BTD180M High-Yield Magenta Ink Bottle costs $0.0025/GB. Brother - Genuine BTD180M High-Yield Magenta Ink Bottle offers 100% better value per page as of July 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
21 Black Replacement Ink Cartridge for HP Printers (5 Black) vs Brother - Genuine BTD180M High-Yield Magenta Ink Bottle — Which Is Better Value?
Brother - Genuine BTD180M High-Yield Magenta Ink Bottle
Specification Comparison
| Spec | 21 Black Replacement Ink Cartridge for HP Printers (5 Black) | Brother - Genuine BTD180M High-Yield Magenta Ink Bottle |
|---|---|---|
| Brand | HP | Brother |
| Capacity | 190 pages | 5K pages |
| $/page | $0.6421 | $0.0025 |
| Price | $121.99 | $12.29 |
| Retailer | Newegg | Best Buy |
| Category | Printer Ink & Toner | Printer Ink & Toner |
| Subcategory | cartridge | cartridge |
Price Across Retailers
Which Should You Buy?
Based on current pricing data, the Brother - Genuine BTD180M High-Yield Magenta Ink Bottle offers better value at $0.0025//page compared to the 21 Black Replacement Ink Cartridge for HP Printers (5 Black) at $0.6421//page — that's roughly 100% less per page.
The best deal for the Brother - Genuine BTD180M High-Yield Magenta Ink Bottle is $12.29 at Best Buy, while the 21 Black Replacement Ink Cartridge for HP Printers (5 Black) starts at $121.99 at Newegg.
However, price per page isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each 21 Black Replacement Ink Cartridge for HP Printers (5 Black) and Brother - Genuine BTD180M High-Yield Magenta Ink Bottle product page for detailed specifications and price history.
Frequently Asked Questions
Is 21 Black Replacement Ink Cartridge for HP Printers (5 Black) or Brother - Genuine BTD180M High-Yield Magenta Ink Bottle a better deal?
As of July 2026, Brother - Genuine BTD180M High-Yield Magenta Ink Bottle offers better value at $0.0025//page compared to 21 Black Replacement Ink Cartridge for HP Printers (5 Black) at $0.6421//page. That is approximately 100% better value per page.
What is the price per GB of 21 Black Replacement Ink Cartridge for HP Printers (5 Black)?
The 21 Black Replacement Ink Cartridge for HP Printers (5 Black) is currently priced at $0.6421/GB ($121.99 for 190 pages) at Newegg.
Where can I buy Brother - Genuine BTD180M High-Yield Magenta Ink Bottle for the cheapest price?
The cheapest price for the Brother - Genuine BTD180M High-Yield Magenta Ink Bottle is $12.29 at Best Buy, which works out to $0.0025/GB.