This is an NEC FNG-710848-0A00 toner cartridge. This toner cartridge is mainly compatible with NEC's "NEFAX" series fax machines and "MULTINA" series multifunction devices. The specific compatible models are as follows: NEFAX series: 610, 650, 690, 700, 750, 790, 910, 950, 980, 980G, D690, D790, D910, D950, H980, H980MX MULTINA series: Ai7000, Ai7000D, Ai7000P, Ai7050, Ai7057 The print yield is approximately 7,800 pages when printing continuously on A4 paper with 5% coverage. This genuine toner cartridge costs around 26,000 yen at Monotaro and Yahoo! Shopping. It is new and unopened. It has been stored in a cool, dark place and is in relatively good condition. I am selling it because I have changed printers. Thank you.