HP 508X Black Toner Cartridge (CF360X) – High-Yield Compatible | Castle Ink

The HP CF360X compatible black toner cartridge from Castle Ink is a direct drop-in replacement for the OEM HP CF360X, built for HP Color LaserJet Enterprise M552, M553 and M577 high-volume office printers. It’s an economical way to keep your HP printer in service without paying OEM prices, while still meeting the print-quality expectations of a business or photo-grade workflow.

Black is the workhorse of the set — the cartridge most owners replace first and most often. Castle Ink’s CF360X is filled with pigment-grade carbon black for dark, dense text and clean bar codes that scan reliably the first time. Every cartridge is assembled with a fresh chip (where applicable), color-balanced toner, and OEM-grade mechanical components, then leak/seal tested before it ships. Castle Ink backs the CF360X with a 100% satisfaction guarantee — if you’re not happy with print quality or yield, we replace or refund.

Compatible HP Printers

Compatibility list available on request.

Product Specifications

• SKU: CF360X
• OEM Reference: HP CF360X
• Color: Black
• Cartridge Type: Compatible (non-OEM)
• Product Family: HP 508X
• Warranty: Castle Ink 100% satisfaction guarantee
• Shipping: Free U.S. shipping; same-day dispatch on orders before 2pm ET

Frequently Asked Questions

Will using the CF360X void my HP printer warranty? No. Under the U.S. Magnuson-Moss Warranty Act, your printer manufacturer cannot void your warranty solely because you installed a compatible (non-OEM) cartridge.

How does print quality compare to the genuine HP cartridge? The CF360X is built to match OEM toner densities, so day-to-day output should look essentially identical. If you ever see a difference, our satisfaction guarantee covers a free replacement or refund.

How fast will my order ship? Orders placed before 2pm ET ship the same business day from our U.S. warehouse with free standard shipping. Faster options are available at checkout.