J2R110, J3R110, דזש 2 ר 150, J3R150, דזש 3 ר 180, J3R200 are JCOP4 series JAVA card is another pinnacle after J2A, J3A, דזש 3 ד, דזש 3 ה סעריע, on the basis of ensuring high security and high performance, די דאַטן סטאָרידזש קאַפּאַציטעט איז געוואקסן, and the Flash chip is used to make the computing speed of the chip faster and more stable. איידער די J3H סעריע JAVA (ינקלוסיוו), all of them used EEPROM chips, און נאָך די J3R סעריע (ינקלוסיוו), they all used Flash chips.
J2R110, J3R110, דזש 2 ר 150, J3R150, דזש 3 ר 180, J3R200 chips are available in EMV and SecID versions. די EMV ווערסיע איז דער הויפּט געניצט אין די פינאַנציעל פעלד; The SecID version is mainly used in the field of electronic identity, and the ECC algorithm and Gen Key encryption algorithm are used in the field of electronic ID card. איצט, the J3R SecID series has obtained the CC EAL 6+ באַווייַזן. The RAM (i.e., טראַסיענט זכּרון) of the J3R series JAVA cards is 4K, which is 0.8K more than that of the J3H series, and the APDU Buffer Size can be expanded even more.