Samsung ML-D4550BELS

**Summary** The Samsung ML-D4550B/ELS Toner Cartridge Black features a security label that changes color when tilted, from clear to cyan, and embossed characters that shift between red/gold and blue when viewed from different angles. This label verifies authenticity and ensures genuine quality. The cartridge complies with ISO/IEC 19752 standards, providing reliable page yields for mono laser printers. It is compatible with several Samsung printers, making it easy to replace. **Key Features** - Security label with color-changing properties to verify authenticity. - ISO/IEC 19752 compliance for reliable page yield testing.