2GB DDR3 laptop memory module, DDR3 SO-DIMM. Operating at 1333MHz this module is suitable for newer laptops & Mac Books with support for DDR3 memory. The DDR3-1333 SO-DIMM consists of 16pcs 256Mx64bits DDR3 SDRAMs FBGA packages and a 2048 bits serial EEPROM on a 204-pin printed circuit board. The memory is a Dual In-Line Memory Module and is intended for mounting into 204-pin edge connector sockets. Synchronous 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