1. YXD-C90C92 is the only one CISS in the market for Epson C90 C92 R270 R265 R260printer.2. YXD-C90C92 chip uses original cartridge sensor, prevent occurring the problemthatchip can not be detected when printer sensor software is updated.3. It suits to the newest printer and future printer use the same cartridge. Preventthe problem that chip can not be detected when printer update. Decrease thestock risk of CISS sales. Advantages:1. Use unbroken new or old original cartridge.2. Install original cartridge simply.3. The quality is stable because it use original cartridge sensor. producing area:China