

🖤 Print Bold, Print Smart — Never Run Out of Ink or Style!
The HP 45 Black Ink Cartridge delivers sharp, fade-resistant prints at 600 x 600 dpi using high-density pigment ink. Compatible with numerous HP DeskJet, OfficeJet, DesignJet, and PhotoSmart models, it offers a robust yield of approximately 930 pages per cartridge. Engineered with 88% recycled content, it combines eco-friendly innovation with reliable, easy-to-install performance—ideal for professionals who demand quality and sustainability in every print.




| ASIN | B0000D80FM |
| Additional Printer Functions | Scan |
| Best Sellers Rank | #49,791 in Office Products ( See Top 100 in Office Products ) #1,991 in Inkjet Printer Ink Cartridges |
| Brand | HP |
| Built-In Media | Inkjet Cartridges |
| Color | Black |
| Compatible Devices | Printer |
| Connectivity Technology | USB |
| Customer Reviews | 4.6 out of 5 stars 872 Reviews |
| Dual-sided printing | No |
| Duplex | Automatic |
| Global Trade Identification Number | 00088698200292 |
| Hardware Interface | USB 2.0 |
| Ink Color | Black |
| Item Dimensions D x W x H | 4.56"D x 6.2"W x 1"H |
| Item Type Name | HP 51645A HP 45, Black Original Ink Cartridge |
| Item Weight | 0.12 Kilograms |
| Manufacturer | HP |
| Maximum Copy Resolution Black and White | 600 dpi |
| Maximum Copy Resolution Color | 600 x 600 DPI |
| Maximum Media Size | A4, Letter (8.5 x 11 inches) |
| Maximum Print Resolution Black and White | 600 x 600 DPI |
| Maximum Sheet Capacity | 100 |
| Maximum print Resolution Color | 600 x 600 DPI |
| Model Name | 51645A |
| Model Number | 51645A#140 |
| Model Series | HP DeskJet, HP OfficeJet |
| Other Special Features of the Product | High Yield |
| Output sheet capacity | 100 |
| Paper Size | 8.5 x 11, 5 x 7, 11 x 17 |
| Print media | Glossy photo paper |
| Printer Connectivity Type | USB |
| Printer Output Type | Monochrome |
| Printer Type | Inkjet |
| Printing Technology | Inkjet |
| Resolution | 600 x 600 |
| Scanner Type | Photo, Portable |
| Special Feature | High Yield |
| Specific Uses For Product | personal |
| Total Usb Ports | 1 |
| Unit Count | 1 Count |
| Warranty Description | HP's Premium Protection Warranty. This HP product is warranted to be free from defects in materials and workmanship. This warranty does not apply to print cartridges that (a) have been refilled, refurbished, remanufactured or tampered with in any way, (b) experience problems resulting from misuse, improper storage, or operation outside of the published environmental specifications for the printer … |
| Warranty Type | limited warranty |
A**R
Original HP.
Original HP works. Not always true for re-manufactured.
C**N
Great and good for more than a year
Will not exp for over a year and works good. Good vendor who delivered fast.
A**R
great value
quality product
O**Z
Ink cartridge
It worked well
K**A
also if I'm not happy with the cartridge
Beware the ink cartridge from HP may be old, the one I just received warranty end date stamped on cartridge (date is near cartridge nozzles on bottom side) was June 2006. The seller said they warranty this product for 30 days, also if I'm not happy with the cartridge, they will ship me out another one (much newer unit). At this time I'm keeping the HP 45 ink cartridge in hopes that it will work perfectly when I install it. The company has worked with me to ensure my satisfaction. Even if this ink is 8 years passed it's expired date, as long as the nozzle seal is intact, it should work OK. The HP 45 ink was delivered on time, it is an original HP 45 ink cartridge in an originally sealed HP 45 ink cartridge box. Through HP, this ink cartridge is just over $50.00 so this is definitely a cheaper buy, as for the value, I'll let you know if I'm disappointed.
S**N
Great ink but expensive
Worked great and probably expensive due to most printers meant for this ink are not being used anymore.
D**D
HP 960c Vintage
Yes, my jet printer from 1995 still works, and these are the Cartridges I need. Thank you
B**N
HP 45 | Ink Cartridge | Black | 51645A
I have to use this for my printer. I have had the printer a long time. The ink has always cost to much. I works good, I guess that's all that matters.
Trustpilot
4 days ago
3 days ago