The JM1333KSN-4G is a 512M x 64bits DDR3-1333 SO-DIMM. The JM1333KSN-4G consists of 16pcsn256Mx8bits DDR3 SDRAMs FBGA packages and a 2048 bits serial EEPROM on a 204-pin printed circuit board. The JM1333KSN-4G is a Dual In-Line Memory Module and is intended for mounting into 204-pin edge connector sockets.nSynchronous design allows precise cycle control with the use of system clock. Data I/O transactions are possible on both edges of DQS. Range of operation frequencies, programmable latencies allow the same device to be useful for a variety of high bandwidth, high performance memory system applications.