- Yellow on fluorescent blue
- UV toner cartridge
- for HP LaserJet Pro 400 M451dn
- 400 M451dw
- 400 M451nw; SecureUV m451
This is a high-quality TROY secureUV toner cartridge for use with the TROY M451 and HP LaserJet M451 printers only. This cartridge yields approx. 2,500 pages with 5% coverage. It has covert security features which are invisible in normal light but fluoresce under UV verification.