J2R110, J3R110, J2R150, J3R150, J3R180, J3R200 are JCOP4 series JAVA card is another pinnacle after J2A, J3A, J3D, ស៊េរី J3H, on the basis of ensuring high security and high performance, សមត្ថភាពផ្ទុកទិន្នន័យកើនឡើង, and the Flash chip is used to make the computing speed of the chip faster and more stable. មុនពេល J3H ស៊េរី JAVA (បញ្ចូលគ្នា), all of them used EEPROM chips, and after the J3R series (បញ្ចូលគ្នា), they all used Flash chips.
J2R110, J3R110, J2R150, J3R150, J3R180, J3R200 chips are available in EMV and SecID versions. The EMV version is mainly used in the financial field; 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. នៅពេលបច្ចុប្បន្ន, the J3R SecID series has obtained the CC EAL 6+ certificate. The RAM (i.e., Trasient Memory) 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.